Kotatsu is a free and open source manga reader for Android.<br>
Main Features:
<ul>
<li>Online manga catalogues</li>
<li>Search manga by name and genre</li>
<li>Reading history</li>
<li>Favourites organized by user-defined categories</li>
<li>Downloading manga and reading it offline. Third-party CBZ archives also supported</li>
<li>Tablet-optimized material design UI</li>
<li>Standard and Webtoon-optimized reader</li>
<li>Notifications about new chapters with updates feed</li>
 </ul>