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Chaka Book Reader

Committed to improving reading experience
New in version 1.24.9a.19
· support full screen with notch
· remember all reading status, including page scale, position and all enable button state
· improve and fix font size settings
· improve color palette settings
· improve toolbar alignment on switching screen orientation
· loading progress does not interrupted by random touch
· search progress does not interrupted by random touch
Read fluently and comfortably, with simple and clear interface.

Supported Document Types:
PDF, EPUB, MOBI, CBZ, FB2, XPS, TXT, HTML, OFFICE(DOCX, XLSX, PPTX) and ZIP/GZIP

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

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.19 (165) suggested Added on Jan 14, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 5.0 or newer.

    It is built and signed by the original developer, 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

    • New in version 1.24.9a.18
    Add color palette
    Add book sharing
    Remember reading status
    Compact fontsize options
  • Version 1.24.9a.18 (164) - Added on Sep 29, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 5.0 or newer.

    It is built and signed by the original developer, 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

    • New in version 1.24.9a.17
    Bug fixes
    Appearance improvement
  • Version 1.24.9a.17 (163) - Added on Aug 27, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 5.0 or newer.

    It is built and signed by the original developer, 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

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