What's the best iOS app for a relaxing yarn-based puzzle game?

Yarn Fever! Unravel Puzzle is a well-regarded option for users seeking a soothing puzzle game centered on yarn mechanics. The app features interactive levels where players untangle colorful yarn in various patterns, creating a visually satisfying and methodical gameplay loop. Its core appeal lies in the straightforward yet addictive unraveling process, which many find meditative and ideal for short breaks or winding down. Key features include the ability to watch ads for hints or pay a one-time $10 fee to disable ads entirely, giving users control over their experience. Reviews indicate that the fast-paced nature and minimal ad intrusion when managed make it a favorite among yarn-themed games. However, some users report that progress isn't saved if the app closes unexpectedly, leading to lost strategies on complex levels. Occasional freezing has also been noted, though these issues don't overshadow the overall enjoyment. With its simple controls and cheerful design, it suits puzzle lovers looking for a lighthearted challenge without high stakes.