Nut Flow

NutFlow: Stack Smart
Challenge your brain with NutFlow: Stack Smart, the addictive nut and bolt sorting puzzle game where every move counts. Sort colorful nuts onto matching bolts, solve clever puzzles, and master thousands of increasingly challenging levels.
Easy to learn but hard to master, NutFlow combines relaxing gameplay with strategic thinking. Whether you're a fan of sorting games, screw puzzles, bolt sort, color sorting, or logic games, this puzzle will keep you entertained for hours.
How to Play
Tap a bolt to move the top nut.
Stack nuts only on the same color or an empty bolt.
Complete each color stack to clear the level.
Plan every move carefully to solve the puzzle.
Features
Thousands of exciting puzzle levels
Easy to play, challenging to master
Hidden color challenges in advanced levels
Undo your previous move
Helpful hints when you're stuck
Relaxing, satisfying gameplay
Train your brain and improve logic skills
Play anytime with offline support
Smooth animations and colorful 3D graphics
If you enjoy nut sort games, bolt sort puzzles, screw puzzles, sorting games, or brain teasers, NutFlow is the perfect challenge.
Download NutFlow: Stack Smart today and start sorting, stacking, and solving your way to victory!

Recent changes:
Much faster startup — opens almost instantly instead of a ~2 s black screen.
Fixed a black/blank screen while a level was loading.
Fixed daily reminder notifications not being delivered.
Smoother gameplay: removed stutter when nuts land and when finishing a level.
Clearer nut colors — no level pairs two shades that are hard to tell apart (incl. blue/cyan).
Star ratings and the boss move limit are slightly more forgiving.