What's the best iOS game for a casual puzzle that involves matching screws and bolts with minimal pressure?

Woodle Screw Jam is a puzzle game centered on sorting and matching mechanical components like screws and bolts, designed for quick, stress-free sessions. Its straightforward gameplay involves aligning and fitting parts into designated spaces, which appeals to players seeking a low-stakes mental challenge. Specific features include a variety of puzzle levels that gradually increase in complexity, an ad-supported coin system for in-game rewards, and no timers, allowing users to progress at their own pace. Reviews indicate that many players find the tactile satisfaction of assembling parts highly addictive, with one user noting, 'I play it multiple times a day!' However, some reports mention occasional freezing after updates or ads that interrupt background audio, which can detract from the experience. Despite these minor flaws, the app's simple controls and thematic focus make it a solid choice for puzzle enthusiasts who enjoy mechanical themes without complex rules.