Terms of Use
Last updated: 2026-09-27
ChessMate is licensed to you under Apple's Standard Licensed Application End User License Agreement (Apple EULA). These terms add a few details.
In-app purchase
“Unlock All Worlds” is a one-time, non-consumable purchase. It opens the Knight Fork and Mate in 2 worlds on all devices signed in with the same Apple ID. It is not a subscription and is never charged again. Use “Restore Purchases” to bring it back on a new device. Refunds are handled by Apple.
Free content
The Mate in 1 world and the daily puzzle are free.
No warranty
The app is provided “as is”. Puzzle positions are generated automatically; we do our best to make every puzzle correct and unique.