Sonic Boom is the perfect stress reliever. Any time you feel the need to blow something up simply launch this app and have at it.
This app is incredibly easy to learn, especially since when you open it up it will present you with a tutorial on how to use it. After the tutorial, you are presented with an image of a firecracker which you can make bigger by using the native pinch/pull gestures. To light your firecracker swipe your finger on the brown match strip at the bottom of the screen. Once you see flames you can tap the fuse. (If you don’t, nothing will happen.) After the fuse burns down you’ll be privy to a nice explosion complete with the firecracker being blown to bits.
If you really enjoy explosions, you can even slow down the action using the on-screen speed adjuster so you can relish in your kablooey a little longer, and when you are done you can put your finger on the screen and spin the remains 360 degrees.
Feeling a little vindictive? Try touching the options menu. Then you can touch the picture of a camera to add photos to the side of your fireworks. This is a good nonviolent and legal way to punish that certain somebody who might be deserving. Another interesting feature is the compatibility with the Sonic Lighter app. If you have another phone with that app running, you can use the lighter on your fuse by putting the phones near each other.
This is another one of those non-practical apps that is still darn fun to use.