Ross ROSS = Recommend OSS · open-source software intelligence for agents

KotatsuApp/Kotatsu

Manga reader for Android observed · 2026-08-28

github.com/KotatsuApp/Kotatsu · homepage · Kotlin · GPL-3.0 (copyleft) · archived observed · 2026-08-28

Health v2 · maintenance only

10/100

  • Activity 50
  • Release rhythm 35
  • Longevity 100

Flags: no_releases archived

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 2407
  • days_rel: n/a
  • days_push: 302
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

8828 stars · 892 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

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 The project has been officially shut down and is no longer maintained.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

application · maturity abandoned

gui search-engine file-upload media android-tools entertainment manga-reader webtoon comics offline-reading material-design kotlin open-source discontinued android mobile

1 source

Member repositories

RepositoryRoleHealth v2
KotatsuApp/Kotatsumain10

For agents

markdown · JSON · MCP: product_card(name="KotatsuApp/Kotatsu")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem