Tachiyomi app
Tachiyomi is Multimedia tool that is open source under the Apache-2.0 license. Tachiyomi is a free and open source manga reader for Android.Features include:
* Online reading from sources such as MangaDex, MangaSee, Mangakakalot, and more
* Local reading of downloaded manga
* A configurable reader with multiple viewers, reading directions and other settings.
* MyAnimeList, AniList, Kitsu, Shikimori, and Bangumi support
* Categories to organize your library
* Light and dark themes
* Schedule updating your library for new chapters
* Create backups locally to read offline or to your desired cloud service