This is one of the magic app I created and coded, named Faster than Calc

http://itunes.apple.com/us/app/faster-th......360?mt=8

The effect is simply: A spectator enters a formula anyway he likes (say, 10+945+741-854+964*2+21-124...) into the iPhone calc app, and without having him pressed the = button, you instantly knows the answer.

There are two modes of the effects: Calc Mode, and Mind Mode.

The effect above is done with Calc mode. With Mind Mode, a spectator enter any number in the iPhone calc and instantly you know the number.

My quality control of magic app is very strict, so I am sure that you will find the effect very useful and impressive.

Tell me what you think.

Alex Hui