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Chaka Book Reader

Committed to improving reading experience
New in version 1.24.9a.12
Add online help
improve interface
Fix bugs
Read fluently and comfortably, with simple and clear interface.

Supported Document Types:
PDF, EPUB, MOBI, CBZ, FB2 and XPS

Features:
Horizontal / Vertical Flip
Continuous Scroll
Lock Stray: Keep scroll straight
Margin Crop
Focus Mode: Retent page position on flipping zoomed pages
Smarty Focus: Recognize border bias in Focus Mode
Text Copy
RtL Text: Support Top-to-Bottom, Right-to-Left(TB-RL) text
Single Column: Support scanned dual-spread PDF page
Links
Search
Font Size
Table of Contents

The project is under active development.
  • app screenshot
  • app screenshot
  • app screenshot
  • app screenshot
  • app screenshot

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.24.9a.12 (158) suggested Added on Apr 22, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 5.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • net.timelegend.chaka.viewer.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 19 MiB PGP Signature | Build Log

  • Version 1.24.9a.11 (157) - Added on Dec 17, 2024

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 5.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • net.timelegend.chaka.viewer.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 19 MiB PGP Signature | Build Log

  • Version 1.24.9a.10 (156) - Added on Nov 16, 2024

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 5.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • net.timelegend.chaka.viewer.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 19 MiB PGP Signature | Build Log

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