Terms of Service

These Terms of Service (“Terms”) are an agreement between you and KidsPro World LLC, 30 N Gould St Ste R, Sheridan, WY 82801, USA (“we”, “us”), for ChessMate: Chess AI & 2 Player (“ChessMate” or “the App”). By downloading or using the App you agree to them. If you do not agree, please do not use the App.

ChessMate is a general-audience app for players aged 13 and over. If you are under the age of majority where you live, please read these Terms with a parent or guardian. There are no accounts, so there is nothing to sign up for.

ChessMate is free. The current version has no in-app purchases, no subscriptions and no ads, and every game mode, lesson and puzzle is available to everyone.

If a future version adds optional purchases or ads, these Terms and the ChessMate Privacy Policy will be updated first. Purchases would be processed by Apple or Google under their terms, and we will never sell gameplay advantages.

We give you a personal, non-exclusive, non-transferable, revocable license to use ChessMate on devices you own or control, for your own non-commercial enjoyment.

You agree not to:

• copy, modify, sell, rent or redistribute the App or its content;
• reverse engineer or decompile the App, except where the law or an open-source license for a specific component allows it;
• use the App, its AI or its analysis to cheat in online or over-the-board games, tournaments or rated play where outside help is not allowed;
• extract or scrape the App’s lessons, artwork or other content;
• remove or alter any copyright, trademark or license notice;
• use the App unlawfully or in a way that harms others.

ChessMate’s ten computer opponents, from Biscuit to ChessMate Max, and its hints, puzzle ratings and game review are provided for entertainment and learning.

• Level names such as “Grandmaster” describe difficulty inside the App. They are not titles or ratings from FIDE or any chess federation.
• Evaluations, “best move” suggestions and accuracy scores are computer estimates and can be wrong.
• Puzzle ratings track your own progress and are not official ratings.

Coins are earned only by playing. They have no real-world value and cannot be bought, sold or exchanged. You can spend them inside the App on extra hints and undos, an extra life in Puzzle Rush, streak freezes, and premium boards and piece sets.

Coins, unlocks and progress are stored on your device. If you delete the App or lose your device, they may be lost, and we cannot restore them because we hold no copy.

The App and its content, including the ChessMate name, the characters Jani, Jiso and Biscuit, artwork, lessons, text, sounds and our software, belong to KidsPro World LLC or its licensors and are protected by intellectual property laws. These Terms do not transfer any ownership to you.

The rules of chess belong to everyone, and the games you play are yours to share.

Puzzle data: Lichess (CC0). ChessMate’s puzzles are selected from the Lichess puzzle database (database.lichess.org), released under Creative Commons CC0 1.0 Universal. Thank you to Lichess and its community.

ChessMate also includes open-source software. Those components are licensed under their own terms, which apply to them instead of these Terms where they differ. Their notices are included with the App and listed on our open-source licenses page.

ChessMate has no account and collects no personal data. Details are in the ChessMate Privacy Policy, which forms part of these Terms.

We may release updates that add, change or remove features, and some may be needed to keep using the App. ChessMate works offline, but we cannot promise it will run on every device or operating system version, or that we will support it forever.

THE APP IS PROVIDED “AS IS” AND “AS AVAILABLE”, WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

We do not promise that the App will be error-free or uninterrupted, that the AI’s analysis will be accurate, or that saved progress will never be lost. Some places do not allow certain disclaimers, so parts of this section may not apply to you.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, KIDSPRO WORLD LLC AND ITS OFFICERS, EMPLOYEES AND AGENTS ARE NOT LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR LOST DATA OR PROGRESS, ARISING FROM YOUR USE OF THE APP.

Because ChessMate is free, our total liability for any claim relating to the App is limited to ten US dollars (USD $10). Nothing in these Terms limits liability that cannot be limited by law.

You can stop using ChessMate at any time by deleting it, which also removes its data from your device. Your license ends automatically if you break these Terms.

These Terms are governed by the laws of the State of Wyoming, United States, without regard to conflict-of-law rules. Please contact us first so we can try to resolve any problem directly. Disputes that cannot be resolved informally will be handled by the state and federal courts in Wyoming, unless the consumer law of your country lets you bring them in your local courts.

These Terms are between you and KidsPro World LLC, not Apple or Google, and Apple and Google have no obligation to support the App. If you downloaded ChessMate from the App Store, Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them. Your use of the App must also follow the App Store or Google Play terms that apply to you.

We may update these Terms. We will publish the new version on this page and update the dates at the top, and for material changes we will tell you in the App before they take effect. Continuing to use the App after that means you accept the updated Terms.

Questions about these Terms? Read the ChessMate Privacy Policy or get in touch.