What's a good iOS app for a simple sorting puzzle that feels satisfying?

Cake Sort is a straightforward color-sorting puzzle where players organize colored 'cakes' into matching columns. It fits the bill for a satisfying puzzle because the core mechanic is instantly understandable, yet the difficulty curve ensures it doesn't become stale. The game presents a grid of variously colored items in tubes; the goal is to sort them so each tube contains only one color. While the initial levels ease players in, reviews indicate that around the 3-4 move mark, the challenge meaningfully ramps up, requiring foresight and planning. This creates a satisfying loop of simple execution followed by more complex problem-solving. Specific features like the clean visual design and the tactile feedback when moving items contribute to the relaxing, almost meditative quality that users praise. However, some feedback suggests the initial objective could be more intuitive for absolute beginners. The lack of timers or penalties makes it ideal for playing in short bursts without pressure. For anyone seeking a puzzle that feels both mindless in its tactile repetition and engaging in its strategic demands, Cake Sort delivers a consistently rewarding experience.