What's the best iOS app for satisfying sorting puzzles with 3D mechanics?

Screw Out 3D is a puzzle game that focuses on sorting and organizing various mechanical components in three-dimensional space. Players manipulate screws, nuts, and other hardware pieces to solve spatial challenges that require both logical thinking and manual dexterity. The app stands out for its tactile 3D mechanics that make virtual object manipulation feel surprisingly physical. Reviews indicate the game maintains player engagement through progressively challenging levels that build on previous concepts while introducing new mechanical elements.

The app's strength lies in its straightforward concept executed with polished visuals and responsive controls. Users report the satisfaction of properly sorting and aligning components provides a genuine sense of accomplishment. However, some players note occasional frustration with specific level designs, particularly boxes that feel less engaging than the mechanical components. The touch controls work adequately for most interactions though some reviews mention finer precision tasks could benefit from Apple Pencil support.

Ad-supported gameplay remains the primary limitation, with multiple users reporting frequent and lengthy commercial interruptions. Despite this, the core puzzle mechanics continue to receive praise for their ability to hold attention and provide meaningful cognitive challenges. The game appears particularly effective for short play sessions where users want mental stimulation without complex learning curves.