This is not just a calculator.
You can handwriting the numbers and calculation symbols.
For example, if you wanna know 532×8,
you just write "532 × 8 ＝"
that's it!!! this app will tell you a result.
Please don't forget to put ＝ on it!
it won't tell ya!
FingerCalc by kazuya masuda on the App Store (iPhone, iPad, iPod touch, iPad Mini, iOS, iPad Air)