Restore purchases
If you bought Sudoku Coach Plus but the app still shows locked features, open the paywall or subscription screen and tap Restore Purchases. Make sure the device is signed in with the Apple ID that made the original purchase.
Help for Sudoku Coach
Need help with guided hints, technique practice, purchases, or privacy? Start here, then contact us if the issue is not covered.
Email [email protected] for questions about this page.
Manage subscriptions
Apple manages subscription billing. To change or cancel a plan, open Settings → Apple ID → Subscriptions → Sudoku Coach on your device. For refund requests, use Apple’s official Report a Problem page.
Technique explanations
Sudoku Coach teaches techniques step by step. If a hint or lesson is confusing, compare it with the written guide for that technique.
Before contacting us
- • Update Sudoku Coach to the latest App Store version.
- • Confirm your device is online before restoring purchases or loading web-based explanations.
- • Restart the app if a lesson, hint, or subscription state looks stale.
- • Include a screenshot when it helps explain the issue.
Contact support
Email us with your device model, iOS version, Sudoku Coach version, and a short description of what happened. Please do not send passwords, payment card numbers, or sensitive personal information. Support is currently provided in English; if another language is easier, include the original message and we will do our best to understand the issue.
Legal and privacy
Review the Privacy Policy for how Sudoku Coach and this site handle analytics, purchases, diagnostics, and support messages. Use Privacy Choices for opt-out and data request information.