Kotatsu Next is a free and open-source manga/webtoon reader for Android based on Kotatsu Redo with built-in online content sources. The main goal of this fork is to maintain existing features and sources from upstream while including additional fixes, optimizations and features.

Kotatsu 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 suppor