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ReSearch

DSL dictionary reader with fast search and DictZip support
New in version 1.6.0
- The app starts faster
- Smooth screen transition animations
- Articles render DSL line breaks, indentation and named colors correctly
- Tabs and extra spaces inside articles no longer break the layout
- The article title can be copied, tapping the article clears the selection
- Source URLs accept host:port addresses
- Dictionary downloads retry automatically when the network switches
- Download progress notifications are more reliable
- Search results clear instantly when the query is erased
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ReSearch is a fast Android dictionary reader for DSL-format dictionaries. Download, import, and search multiple dictionaries with instant article retrieval via DictZip random-access compression.

Features:

- Fast headword search across multiple dictionaries simultaneously
- DictZip support — read individual articles without decompressing the entire dictionary
- Dictionary download from URL sources with automatic versioning
- Import .dsl and .dsl.dz files from device storage
- Automatic indexing with binary index files for instant search
- Multi-charset support — UTF-8, UTF-16 LE/BE auto-detection
- Adaptive three-pane layout for tablets and large screens
- Material 3 UI with dynamic color, plus light, dark, and system-follow themes
- English and Russian localization
- No tracking, no ads, fully open source
  • 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 1.6.0 (9) suggested Added on Sep 26, 2026

    arm64-v8a

    This version requires Android 12 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • 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.
    • show notifications
      Allows the app to show notifications
    • com.example.research.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 3.3 MiB PGP Signature | Build Log

    • New in version 1.5.0
    - The dictionary update card now returns after a failed download
    - Fixed headwords and articles with escaped characters being displayed incorrectly
    - Fixed slow rendering of articles containing many bracket characters
  • Version 1.5.0 (8) - Added on Aug 21, 2026

    arm64-v8a

    This version requires Android 12 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • 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.
    • show notifications
      Allows the app to show notifications
    • com.example.research.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 3.3 MiB PGP Signature | Build Log

    • New in version 1.4.0
    - Fixed matching source URLs to installed dictionary files, so deleted dictionaries can be downloaded again from the same URL
  • Version 1.4.0 (7) - Added on Aug 10, 2026

    arm64-v8a

    This version requires Android 12 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • 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.
    • show notifications
      Allows the app to show notifications
    • com.example.research.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 3.2 MiB PGP Signature | Build Log

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