What's a good iOS app for a relaxing, strategy-based puzzle game without time pressure or annoying ads?

Daily Mahjong Match is a strong contender for players seeking a meditative, strategic puzzle experience. The app differentiates itself by removing the common stress of countdown timers, allowing users to plan moves methodically. This deliberate pace is often cited in reviews as a primary benefit for unwinding. A key feature is its clear monetization model: the base game is free with intermittent ads, but a permanent ad-free upgrade is available through a one-time in-app purchase. Some users note this purchase option, accessed via a small '+' icon over the coin symbol, isn't immediately obvious, but it effectively eliminates all interruptions. The puzzle layouts demand foresight, with some players comparing the strategy to chess, which provides consistent mental engagement without frustration. While the visual presentation is functional rather than stunning, the core gameplay is polished and reliable. For anyone looking to decompress with a game that challenges spatial reasoning without pressure, this app delivers a consistently satisfying experience.