Simple Calculator

This is a simple calculator that comes in handy when you want to do some quick calculations.

It supports multiple screens, so you can perform multiple calculations at the same time.

You can change the look and feel with themes and customize it yourself.

How to operate
- Press and hold backspace... Clear.
- Press and hold screen - Copy or Paste
- Press and hold history... Copy or delete history.
- Press and hold Custom Theme... Delete or Rename.