Sound15 turns the classic 15 puzzle into an audio game that works great with or without VoiceOver. Explore a 4x4 grid by dragging one finger and hear each tile as a musical note. Double tap to slide a tile into the empty space. Long press to have the app speak the tile number and its row and column. When you solve the puzzle you hear a two octave victory melody.

Designed for blind and sighted players, Sound15 offers clear feedback and simple controls. It is fast to learn, relaxing to play, and rewarding to master.

Highlights

Audio first gameplay: every tile has a tone, the empty space is a soft noise

Works with VoiceOver: Direct Touch option lets taps and drags behave normally

Long press speech: hear Tile N, Row R, Column C on demand

Simple moves: double tap to slide when adjacent to the empty

Clear feedback: bright success chime, low thud for invalid moves, win melody

Built in help guide that VoiceOver can read

Guaranteed solvable shuffles

How to Play

Drag one finger to explore. Notes map left to right and top to bottom.

Find the empty by its noise.

Double tap a neighboring tile to slide it into the empty.

Arrange tiles 1 to 15 in order with the empty at bottom right.

VoiceOver Tips

Turn on Direct Touch in the in app Settings so taps and drags pass through.

Use long press to hear the number and position when you want speech.

Why You Will Love It

A classic puzzle you can play by ear

Smooth, musical feedback that makes exploration feel natural

Thoughtful accessibility without getting in the way