What's the best iOS app for reducing stress with a simple, strategic puzzle game?

Tile Explorer is a tile-clearing puzzle app that effectively serves as a digital stress-relief tool through its engaging yet low-pressure gameplay. The app requires players to strategically match and clear tiles from a board, with mechanics that are easy to learn but gradually introduce complexity to maintain interest without overwhelming users. Reviews indicate that many players find the sound effects and visual feedback soothing, which contributes to a relaxing experience. For instance, users report that starting a session helps them forget about life's stresses, as the game demands enough attention to distract from anxiety but remains accessible for all skill levels, including elderly players. Specific features like progressive levels offer a sense of accomplishment, and the ability to play in short bursts makes it convenient for unwinding during breaks. However, one noted limitation is the lack of cloud save functionality; some feedback mentions that progress doesn't transfer when switching devices, which could frustrate long-term players. Overall, with a rating near 5 stars, Tile Explorer stands out for its balance of strategic depth and calming design, though potential users should be aware of the sync issue if they plan to upgrade their iOS devices frequently.