Retro Sandtoy app for iPhone and iPad

Tilt and flip to make particles flow like sand. Endless combinations!
Makes a mesmerizing iPad display. Start things spinning with the flick of a finger, then sit back and watch patterns form and topple on their own. Inspired by classic toys of the ’70s.

FEATURES:
- thousands of virtual particles respond to gravity as you tilt the device
- automatic mode: just drag and release the edge of the oval (or double-tap) to start it spinning
- snapshot button saves your favorites to your photo album
- change all three sand colors to whatever you like
- reset button lets you restore the original colors or sand arrangement

Now uses more, finer-grained sand when running on Retina Display devices.