Terms of Service

Effective date: 25 May 2026

These Terms of Service (the "Terms") govern your use of the Chess Revision mobile application (the "App") provided by Pawel Turczyk ("we", "us", "our"). By downloading or using the App you agree to these Terms. If you do not agree, do not use the App.

1. License

We grant you a limited, non-exclusive, non-transferable, revocable license to use the App on any iOS device that you own or control, solely for personal, non-commercial purposes, and subject to the Apple Media Services Terms and Conditions.

2. Subscription terms

The App offers a paid auto-renewable subscription called "Chess Revision Premium" that unlocks additional functionality.

Length and price. The subscription period is one year. The price is displayed in the App in your local currency at the time of purchase and is subject to local taxes.
Free trial. A free introductory period may be offered at the time of purchase. The free trial converts automatically to a paid subscription at the end of the trial unless cancelled at least 24 hours before it ends.
Auto-renewal. The subscription renews automatically at the end of each period at the then-current price unless cancelled at least 24 hours before the end of the current period. Your iTunes account is charged within 24 hours prior to the end of the current period.
Managing or cancelling. You can manage or cancel your subscription at any time in your iOS device's Settings app under your Apple ID (apps.apple.com/account/subscriptions). Cancellation takes effect at the end of the current paid period.
Refunds. Refunds, when available, are handled solely by Apple under their published policies. We have no ability to issue refunds directly.

3. Acceptable use

You agree not to: (a) reverse engineer, decompile, or attempt to extract the source code of the App except as expressly permitted by law; (b) use the App for any unlawful purpose; (c) attempt to bypass subscription enforcement or interfere with the App's normal operation; (d) use the App in a way that imposes an unreasonable load on our backend infrastructure.

4. User content

You retain all rights to chess games, positions, and notes you import into or create within the App. You grant us a limited right to process that content solely to provide the App's analysis features.

5. Third-party services

The App integrates with third-party services including Lichess.org and Chess.com. Your use of those services is governed by their own terms. We are not responsible for the availability, content, or practices of third-party services.

6. Disclaimer

The App and the engine analysis it provides are offered for educational and entertainment purposes only. Engine evaluations reflect the output of computational analysis and may contain errors. The App is provided "as is" and "as available" without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement.

7. Limitation of liability

To the maximum extent permitted by applicable law, in no event will we be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of profits or data, arising out of or in connection with your use of the App. Our total liability under these Terms is limited to the amount you paid for the App in the twelve months preceding the claim.

8. Apple-specific terms

These Terms are concluded between you and Pawel Turczyk only, and not with Apple Inc. Apple is not responsible for the App or its content. Apple has no obligation to provide maintenance or support services for the App. In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price of the App; to the maximum extent permitted by applicable law, Apple has no other warranty obligation whatsoever with respect to the App. Apple is not responsible for addressing any claims by you or any third party relating to the App or your possession or use of the App. Apple and its subsidiaries are third-party beneficiaries of these Terms and, upon your acceptance, will have the right to enforce these Terms against you.

9. Termination

We may suspend or terminate your access to the App if you breach these Terms. You may stop using the App at any time. Provisions that by their nature should survive termination will survive, including ownership provisions, warranty disclaimers, and limitations of liability.

10. Changes to these Terms

We may update these Terms from time to time. Material changes will be reflected in the Effective date above and announced in the App. Continued use of the App after a change constitutes acceptance of the revised Terms.

11. Governing law

These Terms are governed by the laws of the Republic of Poland, without regard to its conflict of laws principles. Any dispute arising out of or in connection with these Terms is subject to the exclusive jurisdiction of the courts of Warsaw, Poland.

12. Contact

Pawel Turczyk
[email protected]