diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/cache/ContentCache.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/cache/ContentCache.kt
index 0992360a8..0e42ddde2 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/cache/ContentCache.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/cache/ContentCache.kt
@@ -20,25 +20,8 @@ interface ContentCache {
 
 	fun putRelatedManga(source: MangaSource, url: String, related: SafeDeferred<List<Manga>>)
 
-	class Key(
+	data class Key(
 		val source: MangaSource,
 		val url: String,
-	) {
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as Key
-
-			if (source != other.source) return false
-			return url == other.url
-		}
-
-		override fun hashCode(): Int {
-			var result = source.hashCode()
-			result = 31 * result + url.hashCode()
-			return result
-		}
-	}
+	)
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/db/entity/MangaWithTags.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/db/entity/MangaWithTags.kt
index 61c5e34ca..5a28a10d3 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/db/entity/MangaWithTags.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/db/entity/MangaWithTags.kt
@@ -4,7 +4,7 @@ import androidx.room.Embedded
 import androidx.room.Junction
 import androidx.room.Relation
 
-class MangaWithTags(
+data class MangaWithTags(
 	@Embedded val manga: MangaEntity,
 	@Relation(
 		parentColumn = "manga_id",
@@ -12,21 +12,4 @@ class MangaWithTags(
 		associateBy = Junction(MangaTagsEntity::class)
 	)
 	val tags: List<TagEntity>,
-) {
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as MangaWithTags
-
-		if (manga != other.manga) return false
-		return tags == other.tags
-	}
-
-	override fun hashCode(): Int {
-		var result = manga.hashCode()
-		result = 31 * result + tags.hashCode()
-		return result
-	}
-}
+)
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/github/VersionId.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/github/VersionId.kt
index ec3a0eb71..56c931b24 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/github/VersionId.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/github/VersionId.kt
@@ -2,7 +2,7 @@ package org.koitharu.kotatsu.core.github
 
 import java.util.*
 
-class VersionId(
+data class VersionId(
 	val major: Int,
 	val minor: Int,
 	val build: Int,
@@ -30,28 +30,6 @@ class VersionId(
 		return variantNumber.compareTo(other.variantNumber)
 	}
 
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as VersionId
-
-		if (major != other.major) return false
-		if (minor != other.minor) return false
-		if (build != other.build) return false
-		if (variantType != other.variantType) return false
-		return variantNumber == other.variantNumber
-	}
-
-	override fun hashCode(): Int {
-		var result = major
-		result = 31 * result + minor
-		result = 31 * result + build
-		result = 31 * result + variantType.hashCode()
-		result = 31 * result + variantNumber
-		return result
-	}
-
 	private fun variantWeight(variantType: String) = when (variantType.lowercase(Locale.ROOT)) {
 		"a", "alpha" -> 1
 		"b", "beta" -> 2
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/network/cookies/CookieWrapper.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/network/cookies/CookieWrapper.kt
index 320e8ef91..8aa8ad1c1 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/network/cookies/CookieWrapper.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/network/cookies/CookieWrapper.kt
@@ -8,7 +8,7 @@ import java.io.ObjectInputStream
 import java.io.ObjectOutputStream
 
 
-class CookieWrapper(
+data class CookieWrapper(
 	val cookie: Cookie,
 ) {
 
@@ -66,17 +66,4 @@ class CookieWrapper(
 	fun key(): String {
 		return (if (cookie.secure) "https" else "http") + "://" + cookie.domain + cookie.path + "|" + cookie.name
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as CookieWrapper
-
-		return cookie == other.cookie
-	}
-
-	override fun hashCode(): Int {
-		return cookie.hashCode()
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/image/TrimTransformation.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/image/TrimTransformation.kt
index ad9e13009..ee37d0c9d 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/image/TrimTransformation.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/image/TrimTransformation.kt
@@ -11,7 +11,7 @@ import coil.size.Size
 import coil.transform.Transformation
 import kotlin.math.abs
 
-class TrimTransformation(
+data class TrimTransformation(
 	private val tolerance: Int = 20,
 ) : Transformation {
 
@@ -104,17 +104,4 @@ class TrimTransformation(
 			abs(a.blue - b.blue) <= tolerance &&
 			abs(a.alpha - b.alpha) <= tolerance
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as TrimTransformation
-
-		return tolerance == other.tolerance
-	}
-
-	override fun hashCode(): Int {
-		return tolerance
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/model/DateTimeAgo.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/model/DateTimeAgo.kt
index cfb69a705..5dfe1045b 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/model/DateTimeAgo.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/model/DateTimeAgo.kt
@@ -20,41 +20,6 @@ sealed class DateTimeAgo {
 		override fun equals(other: Any?): Boolean = other === JustNow
 	}
 
-	class MinutesAgo(val minutes: Int) : DateTimeAgo() {
-
-		override fun format(resources: Resources): String {
-			return resources.getQuantityString(R.plurals.minutes_ago, minutes, minutes)
-		}
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-			other as MinutesAgo
-			return minutes == other.minutes
-		}
-
-		override fun hashCode(): Int = minutes
-
-		override fun toString() = "minutes_ago_$minutes"
-	}
-
-	class HoursAgo(val hours: Int) : DateTimeAgo() {
-		override fun format(resources: Resources): String {
-			return resources.getQuantityString(R.plurals.hours_ago, hours, hours)
-		}
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-			other as HoursAgo
-			return hours == other.hours
-		}
-
-		override fun hashCode(): Int = hours
-
-		override fun toString() = "hours_ago_$hours"
-	}
-
 	object Today : DateTimeAgo() {
 		override fun format(resources: Resources): String {
 			return resources.getString(R.string.today)
@@ -75,25 +40,16 @@ sealed class DateTimeAgo {
 		override fun equals(other: Any?): Boolean = other === Yesterday
 	}
 
-	class DaysAgo(val days: Int) : DateTimeAgo() {
+	data class DaysAgo(val days: Int) : DateTimeAgo() {
 
 		override fun format(resources: Resources): String {
 			return resources.getQuantityString(R.plurals.days_ago, days, days)
 		}
 
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-			other as DaysAgo
-			return days == other.days
-		}
-
-		override fun hashCode(): Int = days
-
 		override fun toString() = "days_ago_$days"
 	}
 
-	class MonthsAgo(val months: Int) : DateTimeAgo() {
+	data class MonthsAgo(val months: Int) : DateTimeAgo() {
 
 		override fun format(resources: Resources): String {
 			return if (months == 0) {
@@ -102,19 +58,6 @@ sealed class DateTimeAgo {
 				resources.getQuantityString(R.plurals.months_ago, months, months)
 			}
 		}
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as MonthsAgo
-
-			return months == other.months
-		}
-
-		override fun hashCode(): Int {
-			return months
-		}
 	}
 
 	class Absolute(private val date: Date) : DateTimeAgo() {
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/ChipsView.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/ChipsView.kt
index c2c526e91..c2689a1ed 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/ChipsView.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/ChipsView.kt
@@ -139,39 +139,14 @@ class ChipsView @JvmOverloads constructor(
 		}
 	}
 
-	class ChipModel(
+	data class ChipModel(
 		@ColorRes val tint: Int,
 		val title: CharSequence,
 		@DrawableRes val icon: Int,
 		val isCheckable: Boolean,
 		val isChecked: Boolean,
 		val data: Any? = null,
-	) {
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as ChipModel
-
-			if (tint != other.tint) return false
-			if (title != other.title) return false
-			if (icon != other.icon) return false
-			if (isCheckable != other.isCheckable) return false
-			if (isChecked != other.isChecked) return false
-			return data == other.data
-		}
-
-		override fun hashCode(): Int {
-			var result = tint.hashCode()
-			result = 31 * result + title.hashCode()
-			result = 31 * result + icon.hashCode()
-			result = 31 * result + isCheckable.hashCode()
-			result = 31 * result + isChecked.hashCode()
-			result = 31 * result + (data?.hashCode() ?: 0)
-			return result
-		}
-	}
+	)
 
 	fun interface OnChipClickListener {
 
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/SegmentedBarView.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/SegmentedBarView.kt
index 6550dadf5..78ca6ad48 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/SegmentedBarView.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/widgets/SegmentedBarView.kt
@@ -118,27 +118,10 @@ class SegmentedBarView @JvmOverloads constructor(
 		segmentsSizes.add(w)
 	}
 
-	class Segment(
+	data class Segment(
 		@FloatRange(from = 0.0, to = 1.0) val percent: Float,
 		@ColorInt val color: Int,
-	) {
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as Segment
-
-			if (percent != other.percent) return false
-			return color == other.color
-		}
-
-		override fun hashCode(): Int {
-			var result = percent.hashCode()
-			result = 31 * result + color
-			return result
-		}
-	}
+	)
 
 	private class OutlineProvider : ViewOutlineProvider() {
 		override fun getOutline(view: View, outline: Outline) {
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/ChapterListItem.kt b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/ChapterListItem.kt
index cece102e9..609f6ad09 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/ChapterListItem.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/ChapterListItem.kt
@@ -4,7 +4,7 @@ import android.text.format.DateUtils
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.model.MangaChapter
 
-class ChapterListItem(
+data class ChapterListItem(
 	val chapter: MangaChapter,
 	val flags: Int,
 	private val uploadDateMs: Long,
@@ -66,24 +66,6 @@ class ChapterListItem(
 		}
 	}
 
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as ChapterListItem
-
-		if (chapter != other.chapter) return false
-		if (flags != other.flags) return false
-		return uploadDateMs == other.uploadDateMs
-	}
-
-	override fun hashCode(): Int {
-		var result = chapter.hashCode()
-		result = 31 * result + flags
-		result = 31 * result + uploadDateMs.hashCode()
-		return result
-	}
-
 	companion object {
 
 		const val FLAG_UNREAD = 2
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/HistoryInfo.kt b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/HistoryInfo.kt
index 72e2f7837..66fa2d922 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/HistoryInfo.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/HistoryInfo.kt
@@ -3,35 +3,14 @@ package org.koitharu.kotatsu.details.ui.model
 import org.koitharu.kotatsu.core.model.MangaHistory
 import org.koitharu.kotatsu.parsers.model.Manga
 
-class HistoryInfo(
+data class HistoryInfo(
 	val totalChapters: Int,
 	val currentChapter: Int,
 	val history: MangaHistory?,
 	val isIncognitoMode: Boolean,
 ) {
-
 	val isValid: Boolean
 		get() = totalChapters >= 0
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as HistoryInfo
-
-		if (totalChapters != other.totalChapters) return false
-		if (currentChapter != other.currentChapter) return false
-		if (history != other.history) return false
-		return isIncognitoMode == other.isIncognitoMode
-	}
-
-	override fun hashCode(): Int {
-		var result = totalChapters
-		result = 31 * result + currentChapter
-		result = 31 * result + (history?.hashCode() ?: 0)
-		result = 31 * result + isIncognitoMode.hashCode()
-		return result
-	}
 }
 
 fun HistoryInfo(
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/MangaBranch.kt b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/MangaBranch.kt
index dfe1f7d66..841621277 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/MangaBranch.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/MangaBranch.kt
@@ -3,7 +3,7 @@ package org.koitharu.kotatsu.details.ui.model
 import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.model.ListModel
 
-class MangaBranch(
+data class MangaBranch(
 	val name: String?,
 	val count: Int,
 	val isSelected: Boolean,
@@ -21,24 +21,6 @@ class MangaBranch(
 		}
 	}
 
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as MangaBranch
-
-		if (name != other.name) return false
-		if (count != other.count) return false
-		return isSelected == other.isSelected
-	}
-
-	override fun hashCode(): Int {
-		var result = name.hashCode()
-		result = 31 * result + count
-		result = 31 * result + isSelected.hashCode()
-		return result
-	}
-
 	override fun toString(): String {
 		return "$name: $count"
 	}
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/download/ui/list/DownloadItemModel.kt b/app/src/main/kotlin/org/koitharu/kotatsu/download/ui/list/DownloadItemModel.kt
index 2a4e5a613..42305f769 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/download/ui/list/DownloadItemModel.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/download/ui/list/DownloadItemModel.kt
@@ -7,7 +7,7 @@ import org.koitharu.kotatsu.parsers.model.Manga
 import java.util.Date
 import java.util.UUID
 
-class DownloadItemModel(
+data class DownloadItemModel(
 	val id: UUID,
 	val workState: WorkInfo.State,
 	val isIndeterminate: Boolean,
@@ -64,38 +64,4 @@ class DownloadItemModel(
 			else -> super.getChangePayload(previousState)
 		}
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as DownloadItemModel
-
-		if (id != other.id) return false
-		if (workState != other.workState) return false
-		if (isIndeterminate != other.isIndeterminate) return false
-		if (isPaused != other.isPaused) return false
-		if (manga != other.manga) return false
-		if (error != other.error) return false
-		if (max != other.max) return false
-		if (totalChapters != other.totalChapters) return false
-		if (progress != other.progress) return false
-		if (eta != other.eta) return false
-		return timestamp == other.timestamp
-	}
-
-	override fun hashCode(): Int {
-		var result = id.hashCode()
-		result = 31 * result + workState.hashCode()
-		result = 31 * result + isIndeterminate.hashCode()
-		result = 31 * result + isPaused.hashCode()
-		result = 31 * result + manga.hashCode()
-		result = 31 * result + (error?.hashCode() ?: 0)
-		result = 31 * result + max
-		result = 31 * result + totalChapters
-		result = 31 * result + progress
-		result = 31 * result + eta.hashCode()
-		result = 31 * result + timestamp.hashCode()
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/ExploreButtons.kt b/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/ExploreButtons.kt
index 0e4aa9c83..2eb8a003f 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/ExploreButtons.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/ExploreButtons.kt
@@ -2,24 +2,11 @@ package org.koitharu.kotatsu.explore.ui.model
 
 import org.koitharu.kotatsu.list.ui.model.ListModel
 
-class ExploreButtons(
+data class ExploreButtons(
 	val isRandomLoading: Boolean,
 ) : ListModel {
 
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is ExploreButtons
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as ExploreButtons
-
-		return isRandomLoading == other.isRandomLoading
-	}
-
-	override fun hashCode(): Int {
-		return isRandomLoading.hashCode()
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/MangaSourceItem.kt b/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/MangaSourceItem.kt
index fa0c0e9e5..2425945e5 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/MangaSourceItem.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/MangaSourceItem.kt
@@ -3,7 +3,7 @@ package org.koitharu.kotatsu.explore.ui.model
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.model.MangaSource
 
-class MangaSourceItem(
+data class MangaSourceItem(
 	val source: MangaSource,
 	val isGrid: Boolean,
 ) : ListModel {
@@ -11,20 +11,4 @@ class MangaSourceItem(
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is MangaSourceItem && other.source == source
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as MangaSourceItem
-
-		if (source != other.source) return false
-		return isGrid == other.isGrid
-	}
-
-	override fun hashCode(): Int {
-		var result = source.hashCode()
-		result = 31 * result + isGrid.hashCode()
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/RecommendationsItem.kt b/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/RecommendationsItem.kt
index 9876def1f..5d1a99ba0 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/RecommendationsItem.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/model/RecommendationsItem.kt
@@ -6,7 +6,6 @@ import org.koitharu.kotatsu.parsers.model.Manga
 data class RecommendationsItem(
 	val manga: Manga
 ) : ListModel {
-
 	val summary: String = manga.tags.joinToString { it.title }
 
 	override fun areItemsTheSame(other: ListModel): Boolean {
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/favourites/domain/model/Cover.kt b/app/src/main/kotlin/org/koitharu/kotatsu/favourites/domain/model/Cover.kt
index 1b44af3bb..e76c18724 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/favourites/domain/model/Cover.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/favourites/domain/model/Cover.kt
@@ -3,31 +3,10 @@ package org.koitharu.kotatsu.favourites.domain.model
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.util.find
 
-class Cover(
+data class Cover(
 	val url: String,
 	val source: String,
 ) {
-
 	val mangaSource: MangaSource?
 		get() = if (source.isEmpty()) null else MangaSource.entries.find(source)
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as Cover
-
-		if (url != other.url) return false
-		return source == other.source
-	}
-
-	override fun hashCode(): Int {
-		var result = url.hashCode()
-		result = 31 * result + source.hashCode()
-		return result
-	}
-
-	override fun toString(): String {
-		return "Cover(url='$url', source=$source)"
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/container/FavouriteTabModel.kt b/app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/container/FavouriteTabModel.kt
index 1a9b16276..684c1fa72 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/container/FavouriteTabModel.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/favourites/ui/container/FavouriteTabModel.kt
@@ -2,7 +2,7 @@ package org.koitharu.kotatsu.favourites.ui.container
 
 import org.koitharu.kotatsu.list.ui.model.ListModel
 
-class FavouriteTabModel(
+data class FavouriteTabModel(
 	val id: Long,
 	val title: String,
 ) : ListModel {
@@ -10,20 +10,4 @@ class FavouriteTabModel(
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is FavouriteTabModel && other.id == id
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as FavouriteTabModel
-
-		if (id != other.id) return false
-		return title == other.title
-	}
-
-	override fun hashCode(): Int {
-		var result = id.hashCode()
-		result = 31 * result + title.hashCode()
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterCoordinator.kt b/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterCoordinator.kt
index 30516882b..dba254833 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterCoordinator.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/FilterCoordinator.kt
@@ -263,30 +263,11 @@ class FilterCoordinator @Inject constructor(
 		return result
 	}
 
-	private class TagsWrapper(
+	private data class TagsWrapper(
 		val tags: Set<MangaTag>,
 		val isLoading: Boolean,
 		val isError: Boolean,
-	) {
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as TagsWrapper
-
-			if (tags != other.tags) return false
-			if (isLoading != other.isLoading) return false
-			return isError == other.isError
-		}
-
-		override fun hashCode(): Int {
-			var result = tags.hashCode()
-			result = 31 * result + isLoading.hashCode()
-			result = 31 * result + isError.hashCode()
-			return result
-		}
-	}
+	)
 
 	private class TagTitleComparator(lc: String?) : Comparator<MangaTag> {
 
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterItem.kt b/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterItem.kt
index e096ebc51..063d3521c 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterItem.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterItem.kt
@@ -8,7 +8,7 @@ import org.koitharu.kotatsu.parsers.model.SortOrder
 
 sealed interface FilterItem : ListModel {
 
-	class Sort(
+	data class Sort(
 		val order: SortOrder,
 		val isSelected: Boolean,
 	) : FilterItem {
@@ -24,25 +24,9 @@ sealed interface FilterItem : ListModel {
 				super.getChangePayload(previousState)
 			}
 		}
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as Sort
-
-			if (order != other.order) return false
-			return isSelected == other.isSelected
-		}
-
-		override fun hashCode(): Int {
-			var result = order.hashCode()
-			result = 31 * result + isSelected.hashCode()
-			return result
-		}
 	}
 
-	class Tag(
+	data class Tag(
 		val tag: MangaTag,
 		val isChecked: Boolean,
 	) : FilterItem {
@@ -58,43 +42,14 @@ sealed interface FilterItem : ListModel {
 				super.getChangePayload(previousState)
 			}
 		}
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as Tag
-
-			if (tag != other.tag) return false
-			return isChecked == other.isChecked
-		}
-
-		override fun hashCode(): Int {
-			var result = tag.hashCode()
-			result = 31 * result + isChecked.hashCode()
-			return result
-		}
 	}
 
-	class Error(
+	data class Error(
 		@StringRes val textResId: Int,
 	) : FilterItem {
 
 		override fun areItemsTheSame(other: ListModel): Boolean {
 			return other is Error && textResId == other.textResId
 		}
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as Error
-
-			return textResId == other.textResId
-		}
-
-		override fun hashCode(): Int {
-			return textResId
-		}
 	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterState.kt b/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterState.kt
index b4ab41c7a..efb1d4168 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterState.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/filter/ui/model/FilterState.kt
@@ -3,24 +3,7 @@ package org.koitharu.kotatsu.filter.ui.model
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.model.SortOrder
 
-class FilterState(
+data class FilterState(
 	val sortOrder: SortOrder?,
 	val tags: Set<MangaTag>,
-) {
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as FilterState
-
-		if (sortOrder != other.sortOrder) return false
-		return tags == other.tags
-	}
-
-	override fun hashCode(): Int {
-		var result = sortOrder?.hashCode() ?: 0
-		result = 31 * result + tags.hashCode()
-		return result
-	}
-}
+)
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/image/ui/ImageActivity.kt b/app/src/main/kotlin/org/koitharu/kotatsu/image/ui/ImageActivity.kt
index 56a11f004..73203e59d 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/image/ui/ImageActivity.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/image/ui/ImageActivity.kt
@@ -98,7 +98,7 @@ class ImageActivity : BaseActivity<ActivityImageBinding>(), ImageRequest.Listene
 			.enqueueWith(coil)
 	}
 
-	private class SsivTarget(
+	private data class SsivTarget(
 		override val view: SubsamplingScaleImageView,
 	) : ViewTarget<SubsamplingScaleImageView> {
 
@@ -106,14 +106,6 @@ class ImageActivity : BaseActivity<ActivityImageBinding>(), ImageRequest.Listene
 
 		override fun onSuccess(result: Drawable) = setDrawable(result)
 
-		override fun equals(other: Any?): Boolean {
-			return (this === other) || (other is SsivTarget && view == other.view)
-		}
-
-		override fun hashCode() = view.hashCode()
-
-		override fun toString() = "SsivTarget(view=$view)"
-
 		private fun setDrawable(drawable: Drawable?) {
 			if (drawable != null) {
 				view.setImage(ImageSource.Bitmap(drawable.toBitmap()))
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaDirInput.kt b/app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaDirInput.kt
index bdfe8adf7..f500558b9 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaDirInput.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaDirInput.kt
@@ -77,7 +77,7 @@ class LocalMangaDirInput(root: File) : LocalMangaInput(root) {
 			largeCoverUrl = null,
 			description = null,
 		)
-		LocalManga(root, manga)
+		LocalManga(manga, root)
 	}
 
 	override suspend fun getMangaInfo(): Manga? = runInterruptible(Dispatchers.IO) {
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaZipInput.kt b/app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaZipInput.kt
index f468c4647..6526c5bb5 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaZipInput.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/local/data/input/LocalMangaZipInput.kt
@@ -94,7 +94,7 @@ class LocalMangaZipInput(root: File) : LocalMangaInput(root) {
 				)
 			}
 		}
-		return LocalManga(root, manga)
+		return LocalManga(manga, root)
 	}
 
 	override suspend fun getMangaInfo(): Manga? = runInterruptible(Dispatchers.IO) {
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/local/domain/model/LocalManga.kt b/app/src/main/kotlin/org/koitharu/kotatsu/local/domain/model/LocalManga.kt
index 247d395d4..26b15966b 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/local/domain/model/LocalManga.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/local/domain/model/LocalManga.kt
@@ -6,13 +6,11 @@ import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import java.io.File
 
-class LocalManga(
-	val file: File,
+data class LocalManga(
 	val manga: Manga,
+	val file: File = manga.url.toUri().toFile(),
 ) {
 
-	constructor(manga: Manga) : this(manga.url.toUri().toFile(), manga)
-
 	var createdAt: Long = -1L
 		private set
 		get() {
@@ -31,22 +29,6 @@ class LocalManga(
 		return manga.tags.containsAll(tags)
 	}
 
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as LocalManga
-
-		if (manga != other.manga) return false
-		return file == other.file
-	}
-
-	override fun hashCode(): Int {
-		var result = manga.hashCode()
-		result = 31 * result + file.hashCode()
-		return result
-	}
-
 	override fun toString(): String {
 		return "LocalManga(${file.path}: ${manga.title})"
 	}
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/reader/domain/ReaderColorFilter.kt b/app/src/main/kotlin/org/koitharu/kotatsu/reader/domain/ReaderColorFilter.kt
index 8852ff2da..9b4f8a828 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/reader/domain/ReaderColorFilter.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/reader/domain/ReaderColorFilter.kt
@@ -3,7 +3,7 @@ package org.koitharu.kotatsu.reader.domain
 import android.graphics.ColorMatrix
 import android.graphics.ColorMatrixColorFilter
 
-class ReaderColorFilter(
+data class ReaderColorFilter(
 	val brightness: Float,
 	val contrast: Float,
 	val isInverted: Boolean,
@@ -51,22 +51,4 @@ class ReaderColorFilter(
 		)
 		set(matrix)
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as ReaderColorFilter
-
-		if (brightness != other.brightness) return false
-		if (contrast != other.contrast) return false
-		return isInverted == other.isInverted
-	}
-
-	override fun hashCode(): Int {
-		var result = brightness.hashCode()
-		result = 31 * result + contrast.hashCode()
-		result = 31 * result + isInverted.hashCode()
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/thumbnails/PageThumbnail.kt b/app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/thumbnails/PageThumbnail.kt
index 304f59234..294b8bb2e 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/thumbnails/PageThumbnail.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/thumbnails/PageThumbnail.kt
@@ -4,7 +4,7 @@ import org.koitharu.kotatsu.core.parser.MangaRepository
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.reader.ui.pager.ReaderPage
 
-class PageThumbnail(
+data class PageThumbnail(
 	val isCurrent: Boolean,
 	val repository: MangaRepository,
 	val page: ReaderPage,
@@ -16,23 +16,4 @@ class PageThumbnail(
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is PageThumbnail && page == other.page
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as PageThumbnail
-
-		if (isCurrent != other.isCurrent) return false
-		if (repository != other.repository) return false
-		return page == other.page
-	}
-
-	override fun hashCode(): Int {
-		var result = isCurrent.hashCode()
-		result = 31 * result + repository.hashCode()
-		result = 31 * result + page.hashCode()
-		return result
-	}
-
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblerManga.kt b/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblerManga.kt
index 94151906d..f4d3be9bc 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblerManga.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblerManga.kt
@@ -2,40 +2,17 @@ package org.koitharu.kotatsu.scrobbling.common.domain.model
 
 import org.koitharu.kotatsu.list.ui.model.ListModel
 
-class ScrobblerManga(
+data class ScrobblerManga(
 	val id: Long,
 	val name: String,
 	val altName: String?,
 	val cover: String,
 	val url: String,
 ) : ListModel {
-
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is ScrobblerManga && other.id == id
 	}
 
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as ScrobblerManga
-
-		if (id != other.id) return false
-		if (name != other.name) return false
-		if (altName != other.altName) return false
-		if (cover != other.cover) return false
-		return url == other.url
-	}
-
-	override fun hashCode(): Int {
-		var result = id.hashCode()
-		result = 31 * result + name.hashCode()
-		result = 31 * result + altName.hashCode()
-		result = 31 * result + cover.hashCode()
-		result = 31 * result + url.hashCode()
-		return result
-	}
-
 	override fun toString(): String {
 		return "ScrobblerManga #$id \"$name\" $url"
 	}
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblerUser.kt b/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblerUser.kt
index 89037e4a2..d79d0a3c7 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblerUser.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblerUser.kt
@@ -1,29 +1,8 @@
 package org.koitharu.kotatsu.scrobbling.common.domain.model
 
-class ScrobblerUser(
+data class ScrobblerUser(
 	val id: Long,
 	val nickname: String,
 	val avatar: String,
 	val service: ScrobblerService,
-) {
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as ScrobblerUser
-
-		if (id != other.id) return false
-		if (nickname != other.nickname) return false
-		if (avatar != other.avatar) return false
-		return service == other.service
-	}
-
-	override fun hashCode(): Int {
-		var result = id.hashCode()
-		result = 31 * result + nickname.hashCode()
-		result = 31 * result + avatar.hashCode()
-		result = 31 * result + service.hashCode()
-		return result
-	}
-}
+)
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblingInfo.kt b/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblingInfo.kt
index 828a2c607..ff106007f 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblingInfo.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/domain/model/ScrobblingInfo.kt
@@ -2,7 +2,7 @@ package org.koitharu.kotatsu.scrobbling.common.domain.model
 
 import org.koitharu.kotatsu.list.ui.model.ListModel
 
-class ScrobblingInfo(
+data class ScrobblingInfo(
 	val scrobbler: ScrobblerService,
 	val mangaId: Long,
 	val targetId: Long,
@@ -19,38 +19,4 @@ class ScrobblingInfo(
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is ScrobblingInfo && other.scrobbler == scrobbler
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as ScrobblingInfo
-
-		if (scrobbler != other.scrobbler) return false
-		if (mangaId != other.mangaId) return false
-		if (targetId != other.targetId) return false
-		if (status != other.status) return false
-		if (chapter != other.chapter) return false
-		if (comment != other.comment) return false
-		if (rating != other.rating) return false
-		if (title != other.title) return false
-		if (coverUrl != other.coverUrl) return false
-		if (description != other.description) return false
-		return externalUrl == other.externalUrl
-	}
-
-	override fun hashCode(): Int {
-		var result = scrobbler.hashCode()
-		result = 31 * result + mangaId.hashCode()
-		result = 31 * result + targetId.hashCode()
-		result = 31 * result + (status?.hashCode() ?: 0)
-		result = 31 * result + chapter
-		result = 31 * result + (comment?.hashCode() ?: 0)
-		result = 31 * result + rating.hashCode()
-		result = 31 * result + title.hashCode()
-		result = 31 * result + coverUrl.hashCode()
-		result = 31 * result + (description?.hashCode() ?: 0)
-		result = 31 * result + externalUrl.hashCode()
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/ui/selector/model/ScrobblerHint.kt b/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/ui/selector/model/ScrobblerHint.kt
index ec2342521..9b2b42eac 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/ui/selector/model/ScrobblerHint.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/scrobbling/common/ui/selector/model/ScrobblerHint.kt
@@ -4,7 +4,7 @@ import androidx.annotation.DrawableRes
 import androidx.annotation.StringRes
 import org.koitharu.kotatsu.list.ui.model.ListModel
 
-class ScrobblerHint(
+data class ScrobblerHint(
 	@DrawableRes val icon: Int,
 	@StringRes val textPrimary: Int,
 	@StringRes val textSecondary: Int,
@@ -15,26 +15,4 @@ class ScrobblerHint(
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is ScrobblerHint && other.textPrimary == textPrimary
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as ScrobblerHint
-
-		if (icon != other.icon) return false
-		if (textPrimary != other.textPrimary) return false
-		if (textSecondary != other.textSecondary) return false
-		if (error != other.error) return false
-		return actionStringRes == other.actionStringRes
-	}
-
-	override fun hashCode(): Int {
-		var result = icon
-		result = 31 * result + textPrimary
-		result = 31 * result + textSecondary
-		result = 31 * result + (error?.hashCode() ?: 0)
-		result = 31 * result + actionStringRes
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/MultiSearchListModel.kt b/app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/MultiSearchListModel.kt
index 83d6c9dc2..7d6f802fc 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/MultiSearchListModel.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/search/ui/multi/MultiSearchListModel.kt
@@ -5,7 +5,7 @@ import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.MangaItemModel
 import org.koitharu.kotatsu.parsers.model.MangaSource
 
-class MultiSearchListModel(
+data class MultiSearchListModel(
 	val source: MangaSource,
 	val hasMore: Boolean,
 	val list: List<MangaItemModel>,
@@ -23,24 +23,4 @@ class MultiSearchListModel(
 			super.getChangePayload(previousState)
 		}
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as MultiSearchListModel
-
-		if (source != other.source) return false
-		if (hasMore != other.hasMore) return false
-		if (list != other.list) return false
-		return error == other.error
-	}
-
-	override fun hashCode(): Int {
-		var result = source.hashCode()
-		result = 31 * result + hasMore.hashCode()
-		result = 31 * result + list.hashCode()
-		result = 31 * result + (error?.hashCode() ?: 0)
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/DirectoryModel.kt b/app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/DirectoryModel.kt
index 401ae7452..7c274458d 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/DirectoryModel.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/settings/storage/DirectoryModel.kt
@@ -5,14 +5,13 @@ import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import java.io.File
 
-class DirectoryModel(
+data class DirectoryModel(
 	val title: String?,
 	@StringRes val titleRes: Int,
 	val file: File?,
 	val isChecked: Boolean,
 	val isAvailable: Boolean,
 ) : ListModel {
-
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is DirectoryModel && other.file == file && other.title == title && other.titleRes == titleRes
 	}
@@ -24,26 +23,4 @@ class DirectoryModel(
 			super.getChangePayload(previousState)
 		}
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as DirectoryModel
-
-		if (title != other.title) return false
-		if (titleRes != other.titleRes) return false
-		if (file != other.file) return false
-		if (isChecked != other.isChecked) return false
-		return isAvailable == other.isAvailable
-	}
-
-	override fun hashCode(): Int {
-		var result = title?.hashCode() ?: 0
-		result = 31 * result + titleRes
-		result = 31 * result + (file?.hashCode() ?: 0)
-		result = 31 * result + isChecked.hashCode()
-		result = 31 * result + isAvailable.hashCode()
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/settings/userdata/StorageUsage.kt b/app/src/main/kotlin/org/koitharu/kotatsu/settings/userdata/StorageUsage.kt
index 5d3f2c80a..6ed2e4748 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/settings/userdata/StorageUsage.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/settings/userdata/StorageUsage.kt
@@ -1,51 +1,13 @@
 package org.koitharu.kotatsu.settings.userdata
 
-class StorageUsage(
+data class StorageUsage(
 	val savedManga: Item,
 	val pagesCache: Item,
 	val otherCache: Item,
 	val available: Item,
 ) {
-
-	class Item(
+	data class Item(
 		val bytes: Long,
 		val percent: Float,
-	) {
-
-		override fun equals(other: Any?): Boolean {
-			if (this === other) return true
-			if (javaClass != other?.javaClass) return false
-
-			other as Item
-
-			if (bytes != other.bytes) return false
-			return percent == other.percent
-		}
-
-		override fun hashCode(): Int {
-			var result = bytes.hashCode()
-			result = 31 * result + percent.hashCode()
-			return result
-		}
-	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as StorageUsage
-
-		if (savedManga != other.savedManga) return false
-		if (pagesCache != other.pagesCache) return false
-		if (otherCache != other.otherCache) return false
-		return available == other.available
-	}
-
-	override fun hashCode(): Int {
-		var result = savedManga.hashCode()
-		result = 31 * result + pagesCache.hashCode()
-		result = 31 * result + otherCache.hashCode()
-		result = 31 * result + available.hashCode()
-		return result
-	}
+	)
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/sync/domain/SyncAuthResult.kt b/app/src/main/kotlin/org/koitharu/kotatsu/sync/domain/SyncAuthResult.kt
index b1581e1d0..e8d29ec70 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/sync/domain/SyncAuthResult.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/sync/domain/SyncAuthResult.kt
@@ -1,29 +1,8 @@
 package org.koitharu.kotatsu.sync.domain
 
-class SyncAuthResult(
+data class SyncAuthResult(
 	val host: String,
 	val email: String,
 	val password: String,
 	val token: String,
-) {
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as SyncAuthResult
-
-		if (host != other.host) return false
-		if (email != other.email) return false
-		if (password != other.password) return false
-		return token == other.token
-	}
-
-	override fun hashCode(): Int {
-		var result = host.hashCode()
-		result = 31 * result + email.hashCode()
-		result = 31 * result + password.hashCode()
-		result = 31 * result + token.hashCode()
-		return result
-	}
-}
+)
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/model/MangaTracking.kt b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/model/MangaTracking.kt
index be931ad98..67f0eb02c 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/model/MangaTracking.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/model/MangaTracking.kt
@@ -3,31 +3,12 @@ package org.koitharu.kotatsu.tracker.domain.model
 import java.util.*
 import org.koitharu.kotatsu.parsers.model.Manga
 
-class MangaTracking(
+data class MangaTracking(
 	val manga: Manga,
 	val lastChapterId: Long,
 	val lastCheck: Date?,
 ) {
-
 	fun isEmpty(): Boolean {
 		return lastChapterId == 0L
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as MangaTracking
-
-		if (manga != other.manga) return false
-		if (lastChapterId != other.lastChapterId) return false
-		return lastCheck == other.lastCheck
-	}
-
-	override fun hashCode(): Int {
-		var result = manga.hashCode()
-		result = 31 * result + lastChapterId.hashCode()
-		result = 31 * result + (lastCheck?.hashCode() ?: 0)
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/feed/model/FeedItem.kt b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/feed/model/FeedItem.kt
index dd7d20d6b..7cc085d4b 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/feed/model/FeedItem.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/feed/model/FeedItem.kt
@@ -3,7 +3,7 @@ package org.koitharu.kotatsu.tracker.ui.feed.model
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.parsers.model.Manga
 
-class FeedItem(
+data class FeedItem(
 	val id: Long,
 	val imageUrl: String,
 	val title: String,
@@ -11,32 +11,7 @@ class FeedItem(
 	val count: Int,
 	val isNew: Boolean,
 ) : ListModel {
-
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is FeedItem && other.id == id
 	}
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as FeedItem
-
-		if (id != other.id) return false
-		if (imageUrl != other.imageUrl) return false
-		if (title != other.title) return false
-		if (manga != other.manga) return false
-		if (count != other.count) return false
-		return isNew == other.isNew
-	}
-
-	override fun hashCode(): Int {
-		var result = id.hashCode()
-		result = 31 * result + imageUrl.hashCode()
-		result = 31 * result + title.hashCode()
-		result = 31 * result + manga.hashCode()
-		result = 31 * result + count
-		result = 31 * result + isNew.hashCode()
-		return result
-	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/work/TrackingItem.kt b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/work/TrackingItem.kt
index 837835583..38ad9d4ec 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/work/TrackingItem.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/work/TrackingItem.kt
@@ -2,28 +2,7 @@ package org.koitharu.kotatsu.tracker.work
 
 import org.koitharu.kotatsu.tracker.domain.model.MangaTracking
 
-class TrackingItem(
+data class TrackingItem(
 	val tracking: MangaTracking,
 	val channelId: String?,
-) {
-
-	operator fun component1() = tracking
-
-	operator fun component2() = channelId
-
-	override fun equals(other: Any?): Boolean {
-		if (this === other) return true
-		if (javaClass != other?.javaClass) return false
-
-		other as TrackingItem
-
-		if (tracking != other.tracking) return false
-		return channelId == other.channelId
-	}
-
-	override fun hashCode(): Int {
-		var result = tracking.hashCode()
-		result = 31 * result + channelId.hashCode()
-		return result
-	}
-}
+)