Contact us
For questions or bug reports, email us at:
Please include your iPhone model, iOS version, the screen where the issue occurred, and steps to reproduce it. Only send game records or other personal data if they are needed to investigate the issue.
Frequently asked questions
Do I need an internet connection to play or use AI analysis?
No. Game play, CPU search, position evaluation, and game analysis run on your iPhone. An internet connection is needed to load ads and to buy or restore Remove Ads.
Can I remove ads?
Yes. Open Settings in the app and select “Remove Ads.” The App Store shows the current price in your region. If you have already purchased it, you can restore it using the same Apple Account.
I purchased Remove Ads, but I still see ads. What should I do?
Check your internet connection and Apple Account, then select “Restore Purchases” in Settings. If the purchase still does not appear, restart the app and try again.
Where are my game records stored?
Game records and analysis results are saved in the app’s storage on your iPhone. They are not synced to our server or a cloud game service. They may be lost if you delete the app or change device settings.
Is the position index a win probability?
No. The position index is a simplified display of the on-device AI’s evaluation. It is not a statistically calibrated win probability. When the app can search an endgame to completion, it displays that result separately from the usual evaluation.
Basic troubleshooting
- Close and reopen the app.
- Restart your iPhone.
- Check the App Store for an app update.
- If the problem continues, contact us at the email address above.