Privacy Policy

Last updated: March 1, 2026

Snap That Piece is built with privacy as a core principle. All chess board recognition and piece identification happens entirely on your device. No images are uploaded to any server. No tracking or analytics SDKs are included.

Information We Collect

Information You Provide

  • Account information (optional): If you choose to create an account via Sign in with Apple, we receive your name and email address (or a private relay address). This information is stored securely in your device's Keychain and is not transmitted to our servers.
  • Error reports (optional): If you choose to submit an error report, it may include a cropped image of the detected board area and a text description you provide. Error reports are sent to our server to help improve detection accuracy.

Information Collected Automatically

  • None. The app does not include any analytics SDKs, crash reporting frameworks, or tracking technologies. We do not collect device identifiers, usage statistics, or location data.

Camera and Photo Library Access

The app requests access to your device's camera and photo library to perform chess board detection. Images are processed entirely on-device using local machine learning models. No images are transmitted to any server unless you explicitly choose to submit an error report.

Data Storage

  • Positions and games: Saved on your device using local storage. Not synced to any cloud service.
  • Account credentials: Stored in the iOS Keychain, Apple's secure encrypted storage.
  • Preferences: Stored locally in UserDefaults on your device.

Data Sharing

We do not share, sell, or transfer your personal information to third parties. When you use the "Analyze on Lichess" feature, the app opens a link to lichess.org containing the FEN string of the position. This is a standard web link -- no account data or personal information is included.

Account Deletion

If you have created an account, you can delete it at any time from Settings within the app. Account deletion removes all associated data from your device, including your name, email, saved positions, and preferences. This action is immediate.

Children's Privacy

The app is not directed at children under 13. We do not knowingly collect personal information from children. The app is rated 4+ and contains no objectionable content.

Third-Party Services

The app does not integrate any third-party SDKs, analytics platforms, or advertising networks. The only external interaction is the optional "Analyze on Lichess" deep link and optional error report submission.

Security

Sensitive data (email, name) is stored in the iOS Keychain. Network communications for error reports use HTTPS. The app does not store or transmit passwords.

Changes to This Policy

We may update this privacy policy from time to time. Changes will be reflected on this page with an updated revision date. Continued use of the app after changes constitutes acceptance of the revised policy.

Contact

If you have questions about this privacy policy or your data, contact us at support@snapthatpiece.com.