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Chaka Book Reader

Committed to improving reading experience
New in version 1.27.1a.23
· include Common Vulnerabilities and Exposures(CVE) 1.25-1.27
· improve html table render
· decrease page margin for reflowable documents to get more render space
· same document opened in same window in recent apps overview when opened through same route
· improve transparent system bars display both in new Android version and older versions
· improve page display effect
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 packages of previous documents are suppoted.

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 Select and more operations
· Table of Contents
· Bookmarks
· Links
· Search
· Share book
· Remember reading states

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 1.27.1a.23 (1694) suggested Added on May 20, 2026

    arm64-v8a

    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 5.6 MiB PGP Signature | Build Log

  • Version 1.27.1a.23 (1693) - Added on May 20, 2026

    armeabi-v7a

    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 4.9 MiB PGP Signature | Build Log

  • Version 1.27.1a.23 (1692) - Added on May 20, 2026

    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 5.8 MiB PGP Signature | Build Log

  • Version 1.27.1a.23 (1691) - Added on May 20, 2026

    x86

    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 5.8 MiB PGP Signature | Build Log

    • New in version 1.24.9a.22
    · text select toolbar implemented. operations of copy, share, translate and more are supported.
  • Version 1.24.9a.22 (1684) - Added on Apr 28, 2026

    arm64-v8a

    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 5.6 MiB PGP Signature | Build Log

  • Version 1.24.9a.22 (1683) - Added on Apr 28, 2026

    armeabi-v7a

    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 4.9 MiB PGP Signature | Build Log

  • Version 1.24.9a.22 (1682) - Added on Apr 28, 2026

    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 5.8 MiB PGP Signature | Build Log

  • Version 1.24.9a.22 (1681) - Added on Apr 28, 2026

    x86

    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 5.7 MiB PGP Signature | Build Log

  • Version 1.24.9a.21 (1674) - Added on Apr 04, 2026

    arm64-v8a

    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 5.6 MiB PGP Signature | Build Log

  • Version 1.24.9a.21 (1673) - Added on Apr 04, 2026

    armeabi-v7a

    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 4.9 MiB PGP Signature | Build Log

  • Version 1.24.9a.21 (1672) - Added on Apr 04, 2026

    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 5.8 MiB PGP Signature | Build Log

  • Version 1.24.9a.21 (1671) - Added on Apr 04, 2026

    x86

    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 5.7 MiB PGP Signature | Build Log

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