# KotatsuApp/Kotatsu

Manga reader for Android

Repository: https://github.com/KotatsuApp/Kotatsu
Canonical: https://ross.abutalabs.com/products/kotatsu
Homepage: https://kotatsu.app
Language: Kotlin
License: GPL-3.0
License Family: copyleft
Topics: manga, mangareader, android, comics, webtoon, manga-reader
Archived: true
Last push: 2025-11-04T08:40:47+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 50, release rhythm 35, longevity 100
- inputs: {"age_days": 2407, "days_push": 302, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8828, forks 892 (observed 2026-08-28T04:10:25.914598+00:00)

## What it is
Kotatsu is a free, open-source manga reader app for Android with built-in online sources (1200+), offline downloads, bookmarks, tracking-service integration, and a Material You UI. The project has been officially shut down and is no longer maintained.

## Use cases
- read manga on android
- manga reader app with online sources
- download manga for offline reading
- read webtoons on my phone
- track manga reading progress with anilist or myanimelist
- open cbz comic archives on android

## When to choose
- you want a free, open-source manga reader on Android 6.0+
- you need offline reading and CBZ support
- you want tracking integration with AniList, MyAnimeList, Kitsu, or Shikimori

## When to avoid
- you need an actively maintained app - the project is officially discontinued
- you require app-store distribution or ongoing security updates
- you need iOS or desktop support

## Facets
- artifact type: application
- maturity: abandoned
- function: gui, search-engine, file-upload
- domain: media, android-tools, entertainment
- platform: -
- tags: manga-reader, webtoon, comics, offline-reading, material-design, kotlin, open-source, discontinued, android, mobile

## Member repositories
- KotatsuApp/Kotatsu (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:25.914598+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:24:50.179085+00:00, confidence not recorded.
  - readme: https://github.com/KotatsuApp/Kotatsu (fetched 2026-08-28T04:10:25.914598+00:00, sha 4df93d098eef)
- Data as of 2026-08-30T08:39:29.467469+00:00.