If you’ve ever been mesmerized by a campfire, this app is for you.
Except now you get to make the smoke yourself. Create hundreds of dazzling color combinations from 22 different colors of fog and backgrounds. The particles have been painstakingly modeled to achieve a beautiful realistic effect. You have full control over gravity and wind, and the physics adjust to however you prefer to hold yours iPhone or iPod Touch. You can even set the fog to auto-generate and move around the device on it’s own. But the real fun is moving your finger on the screen and watching the fog billow from your fingertip. The effect is hypnotic, slightly empowering, and some have even said therapeutic. The screenshots don’t do it justice - you have to touch it to experience it. And once you have, good luck putting it down.

The vibrant colors are stimulating and great for entertaining children as well. You’ll have a hard time not looking over their shoulder though.