What's the best iOS app for a relaxing, minimalist puzzle game that's perfect for a short mental break?

Coffee Pool is a highly-rated minimalist puzzle game from Shallot Games that excels at providing a calming, short-form gaming session. The core gameplay involves using simple one-touch mechanics to guide a ball into a pocket, marrying basic physics puzzles with an exceptionally serene aesthetic. Its strength lies in a design philosophy that prioritizes a frictionless, relaxing experience over complex challenges or aggressive monetization. Daily leagues and incremental progression offer a gentle sense of accomplishment without pressure, making it suitable for playing during a commute, waiting in line, or as a deliberate screen-time palate cleanser. Reviews consistently highlight its visual appeal and stress-free nature as key draws. Some users have noted a desire for additional mechanics, like ball spin or a PvP mode, which indicates the core experience, while excellent, is deliberately narrow in scope. The absence of ads or a redo button on every attempt are minor friction points mentioned in feedback, but the overall package is crafted for players seeking a digital moment of calm rather than adrenaline.