Last Updated: October 31, 2026
PuzzleRook: Chess Puzzles (hereinafter referred to as "the App") is an offline chess puzzle trainer. This policy explains what information the App handles and how it is used.
The App does not collect, transmit, or share any personal information. It has no account system, no advertising, no analytics, no crash reporting, and no third-party SDKs.
Your training progress is stored only on your device, in the App's own sandbox. This includes:
This data never leaves your device. Deleting the App removes it, or you can reset all progress from the Settings screen.
The App works fully offline and does not make network requests. Puzzles are bundled with the App.
The puzzles come from the Lichess open puzzle database, which is released under the Creative Commons CC0 license. Chess piece artwork is used under its respective license. No personal information is shared with Lichess or any other party.
The App does not collect personal information from anyone, including children under 13, and is suitable for all ages.
Because your progress is stored only on your device, its security depends on your device's own protections, such as passcode and device encryption.
We may update this privacy policy from time to time. Changes will be posted on this page with a new "Last Updated" date.
For privacy-related questions, please contact:
Email: [email protected]
By using PuzzleRook, you agree to this privacy policy.