Sand in a Box

Sand in a Box is a falling sand simulation app. Just touch the screen to see how grains of sand fall and form stacks. Just try it and you see how fun it is to form landscapes out of sand or watch the water flow.

Features:
- SandPainter mode: paint using sand in thousands of colors.
- Sand Physics: Watch how sands falls and interacts with wall and water.
- intuitive controls: touch the screen to "paint" the sand.
- and it's free!