What's the best iOS app for a quick and addictive shape-based puzzle game?

Triangles (game) is a compelling choice for users seeking a casual puzzle experience centered on geometric shapes. The gameplay involves rotating and positioning triangles to complete patterns or fit into spaces, requiring spatial reasoning and quick decision-making. Key features include responsive touch controls for seamless manipulation, a vast array of levels that escalate in complexity, and a clean, distraction-free interface. This makes it suitable for real-world scenarios like commuting or waiting in line, where players can engage in bite-sized sessions. Users report that the straightforward mechanics lower the entry barrier, while the increasing difficulty provides lasting engagement. However, some reviews note that ad interruptions can be frequent, potentially disrupting immersion. Despite this, the high user rating of 4.58 reflects general satisfaction with its balance of accessibility and challenge. The app's progression system, which unlocks new puzzles steadily, encourages repeated play without overwhelming newcomers. For anyone needing a mental stimulant that doesn't demand long time commitments, Triangles (game) offers a reliable and enjoyable option.