Kotatsu is a free and open-source manga reader for Android with built-in online content sources. Main Features - Online manga catalogues (with 1200+ manga sources) - Search manga by name, genres and more filters - Favorites organized by user-defined categories - Reading history, bookmarks and incognito mode support - Download manga and read it offline. Third-party CBZ archives are also supported - Clean and convenient Material You UI, optimized for phones, tablets and desktop - Standard and Webtoon-optimized customizable reader, gesture support on reading interface - Notifications about new chapters with updates feed, manga recommendations (with filters) - Integration with manga tracking services: Shikimori, AniList, MyAnimeList, Kitsu - Password / fingerprint-protected access to the app - Automatically sync app data with other devices on the same account - Support for older devices running Android 5.0+