Privacy-Policies

Privacy Policy for JBlindfoldChess

Last updated: February 21, 2026

Overview

JBlindfoldChess is a blindfold chess training app that lets you play chess by speaking your moves aloud. This policy explains what data the app uses and how it is handled.

Data We Collect

We do not collect, store, or share any personal data.

Microphone and Speech Recognition

JBlindfoldChess uses your device’s microphone and Apple’s Speech Recognition framework solely to listen for spoken chess moves (e.g. “knight to f3”).

• Audio is processed on-device and/or by Apple’s Speech Recognition service.
• We do not record, store, or transmit your voice or audio to our own servers.
• Apple’s handling of speech data is governed by Apple’s Privacy Policy.

You can revoke microphone and speech recognition permissions at any time in Settings → JBlindfoldChess.

Chess API

To calculate computer moves, the app sends the current board position (in standard FEN notation) to chess-api.com. FEN strings contain only chess piece positions — no personal information of any kind.

Third-Party Services

Service	Purpose	Data sent
Apple Speech Recognition	Convert spoken moves to text	Audio (processed by Apple)
chess-api.com	Calculate computer moves	Chess board position (FEN)

Children’s Privacy

JBlindfoldChess does not knowingly collect any information from anyone, including children under 13.

Changes to This Policy

If this policy changes, the updated version will be posted at this URL with a new “Last updated” date.

Contact

If you have any questions about this privacy policy, contact:

Javid Asgarov — asgarov1@gmail.com