Best ball sort app in the App Store!
100% ad-sponsored (and not too many)
No in-app purchases, no money ever
All puzzles guaranteed solvable
User-selectable difficulty
Highlights movable balls, receptive tubes, dead-ends
Multi-move adjacent same color balls with single tap
Don’t need to tap destination tube if obvious
Unlimited undo
"Hint": if solvable, reveal one move toward solution
"Solvable": if not solvable, undo to last solvable state
Ball sets: colors, numbers (for colorblind), symbols, objects, …
Use rewards for hints, undo, solvable, restart, extra tube, skip
Earn rewards: meet moves target or solve without help or watch ads
Playable off-line
Supports dark mode for night play
Maximum privacy, collects no data linked to you