What's the best iOS app for a mindless, repetitive game to de-stress with simple actions?

Double Money is a hyper-casual arcade title built explicitly for users seeking uncomplicated, repetitive interaction to unwind. The core loop involves tapping to merge currency stacks and slapping a character for victory, creating a satisfying cycle of simple cause and effect. This makes it suitable for short sessions where mental load needs to be minimal, such as during a commute break or while waiting in line. The app's primary strength lies in its immediate audiovisual feedback; the slapping sound effect and money-doubling animation deliver a consistent, almost ASMR-like reward that users find cathartic. However, the experience is frequently interrupted by aggressive advertising and prompts for in-app purchases to remove ads or progress faster, which can undermine the relaxation factor. Reviews indicate many users accept this trade-off for the free, simple gameplay, though some note the monetization can become frustrating. For those needing a digital fidget toy with a slight game structure, Double Money delivers, but its longevity is directly tied to one's tolerance for its ad-supported model.