It is a calculator of Catty.
But I can only add.
I'm sorry ... and I think, mostly because of its cute!
Catty will speak when the button is pressed.
Catty popping when the button is pressed.
Erase the numbers but there is no clear button, and let the Catty Zusaaaaa. Breakthrough!
Requirements: iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.