iCalc

Where's that calculator when you need to do some quantum physics?

Introducing the iCalc, the iPhone accessory that will transform your iPhone into a Calculator. No more pesky phone calls, texting or even games.

Don't even bother rotating your iCalc for the so called "advanced calculator", it's not compatible with it, but hey, who needs them "mathematical shortcuts" anyway, all anyone needs are 0-9 and the four signs.