LetterBox 1.7.0 APK download
Old versions may contain security vulnerabilities. Prefer the latest version when possible.
- Version
- 1.7.0
- Released
- Oct 22, 2026
- Minimum Android
- Android 6
- Target Android
- Android 14
- Package
ch.cryptobit.letterbox
Download
This build will not install over a Google Play version of the same app. Uninstall the existing app first (back up your data).
How to install an APK file on Android · Which APK should I download? arm64-v8a, armeabi-v7a and x86 explained · How to check an APK's SHA-256 checksum
Screenshots
What's new
• Choose which letters to practise: all of them, the ten most common, or just one.
• Optional progress tracking: letters your child knows well come up less often, and progress fades gently after a few weeks without practice. It is stored only on the device.
• Fixed a crash when opening About on Android 6.
• Optional progress tracking: letters your child knows well come up less often, and progress fades gently after a few weeks without practice. It is stored only on the device.
• Fixed a crash when opening About on Android 6.
Permissions
No permission changes compared to the previous version.
All permissions (1)
ch.cryptobit.letterbox.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION