Calculator

Calculator is a free, lightweight, clean and easy to use calculator and unit converter pack. Made with practicality in mind, Calculator is a simple and easy calculator app, ideal for your everyday use.
Features of Calculator:
✦ Easy to use, simple interface
✦ Save the history
✦ Permit to calculate percent
✦ Variables and constants
✦ Integrate and differentiate
✦ Displays calculated expression
✦ Displays operator symbols during calculation
✦ Set theme
✦ Over 50 Unit converters
✦ Instant results

If you find a bug or have any suggestion for improvement, please feel free to contact me. Don't forger to rating for us 5 stars.