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Futoshiki

A clean, modern Futoshiki logic puzzle game
Simple Futoshiki is a clean, modern take on the classic Futoshiki logic puzzle.

Fill the grid with numbers so that no digit repeats in any row or column, while satisfying the "greater than" / "less than" inequality constraints between cells.

Features:

* Three grid sizes (4x4, 5x5, 6x6) with Easy, Medium, and Hard difficulty
* Smooth, modern Material 3 interface built with Jetpack Compose
* Puzzle generator with unique-solution guarantee
* Animated ninja vs dragon chase scene powered by KorGE
* Custom theming system with 4 color themes and multiple theme modes
* Pause and resume with timer and ranking system
* No ads, no tracking, no network permissions required

100% free and open source under Apache 2.0.

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 1.4 (5) suggested Added on Aug 10, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

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

    Permissions
    • control vibration
      Allows the app to control the vibrator.
    • com.hexcorp.futoshiki.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 10 MiB PGP Signature | Build Log

  • Version 1.3 (4) - Added on Jul 10, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

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

    Permissions
    • control vibration
      Allows the app to control the vibrator.
    • com.hexcorp.futoshiki.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 9 MiB PGP Signature | Build Log