iPaint uPaint vs Sandspiel

Red paint, blue paint, I paint, you paint! Great for kids and parents, playing Pictionary with a group of friends, or just doodling! Paint by yourself or wirelessly with a friend. iPaint uPaint turns your iPhone, iPad or iPod Touch into a canvas full of fun! Select a tool, choose a size, and pick a color — the possibilities are endless. FEATURES: • Paint wirelessly with a friend (or paint by yourself if you don't have any friends) • 5 different painting tools • Share on Facebook, Twitter, Instagram, and more • Awesome color picker • Unlimited undo and redo • Shake to erase • Auto-saves each time you quit the app

Sandspiel is a falling sand physics simulator. It is creative toy where players can place elements (like sand, water, fire, plants, etc.) and watch them interact according to simulated physics rules. The game lets you paint with elements and observe surprisingly complex chain reactions: water flows and pools, fire spreads and consumes, plants grow and creep, sand piles up. It's a sandbox for experimentation with no goals beyond play and discovery. Sandspiel embodies constructivist principles — giving you tools to explore and discover rather than explicit objectives to complete, and facilitates calm reflection and healing.