xxCalc is a highly customizable calculator that features
- change background with your favorite images, and adjust theme color and transparency
- change key position by long pressing, so you can arrange your most used keys at will
- adjust keyboards key count of row and column
- calculating history
- calculate while inputting
- and a lot more features......
Videos:
- http://bit.ly/2wn8k0U
- https://goo.gl/UysQPf