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Usagi

Usagi is a comic and manga reader, available on Android: themes and dark mode, sync across devices.

  • Free, with trade-offs
  • Android
  • Open source

Overview

Usagi is a comic and manga reader, available on Android.

Features described in its F-Droid listing and in its GitHub repository: themes and dark mode, sync across devices.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Open-source manga reader for Android” — F-Droid, 10 November 2026
  • “Clean and convenient Material You UI, optimized for phones, tablets and desktop” — F-Droid, 10 November 2026
  • “Automatically sync app data with other devices on the same account” — F-Droid, 10 November 2026

At a glance

Usagi is free, with trade-offs: it relies on a non-free online service.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No advertising
  • Commercial use allowed

Weaknesses

  • Flagged by F-Droid: relies on a non-free online service

Sources and checks

  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Last technical check: 6 November 2026
  • Listing written automatically from verified facts.

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