CO3

CO3

Feature riche, open source, AO3 mobile client

Tbvns Reading

Screenshots

Screenshot of CO3 Screenshot of CO3 Screenshot of CO3 Screenshot of CO3 Screenshot of CO3 Screenshot of CO3 Screenshot of CO3

Description

A free reader app for Archive of Our Own (AO3). Built because other AO3 apps charge money for features that should be free. Features:

  • Custom library with favorites
  • Category management and organization
  • Reading history with filters
  • Native AMOLED support
  • Offline reading
No subscriptions, no ads, ever.

Anti-features

Properties of this app that are worth knowing about before installing.

  • TetheredNet

Versions

Version Date Size Requires Android Download
B0.0.17 current
7e1c8ca9011b8339…
2026-07-18 47 MB API 24
B0.0.17
8a8326ff1674288d…
2026-07-18 48 MB API 24
B0.0.17
6fa97d58a2fb9e61…
2026-07-18 47 MB API 24
B0.0.17
7ca37bf5af2d22ae…
2026-07-18 41 MB API 24
B0.0.16
e676c92a9dfbd89d…
2026-07-13 47 MB API 24
B0.0.16
8a842a1303b214bc…
2026-07-13 48 MB API 24
B0.0.16
12e285a7c4acc814…
2026-07-13 47 MB API 24
B0.0.16
e144e9f9f5ae1e82…
2026-07-13 41 MB API 24
B0.0.15
106a469b209cdf60…
2026-07-10 47 MB API 24
B0.0.15
2b489371ad146ad2…
2026-07-10 48 MB API 24

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Internet accessSend and receive data over the internet.
  • NotificationsShow notifications.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • FOREGROUND_SERVICE_DATA_SYNC
  • Prevent sleepingKeep the device from going to sleep.
  • BiometricsUnlock with fingerprint or face.
  • FingerprintUnlock with a fingerprint.
  • Network stateCheck whether and how the device is connected.
Show 7 more permissions
  • Run at startupStart automatically after the device is switched on.
  • VibrationControl the vibration alert.
  • Exact alarmsTrigger actions at a precise time.
  • ACCESS_NOTIFICATION_POLICY
  • Write storageCreate and change files on the device storage.
  • Read storageRead files on the device storage.
  • co3.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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