Big calculator for iPhone is a calculator designed for iPhone with big buttons and big fonts.
--- Big Button, Big Font---
★ biggest button for easy click,
★ With big button, dont worry about your finger is too big for iPhone button
★ With big button, dont worry about your poor sight for numbers.
--- Easy to use ---
★ Simplify the function of calculator, you just can use it.
★ You will be happy without unfamiliar functions.
★ Children will be more confidence when he could control the whole world
★ Support double 0. Its so Useful
--- support supper long express--
★ With express, you know last button you pressed
★ Support supper infinite scrolling
★ Easy to check with realtime express display