App: Pocket Calculator Woo-Dentaku
Developer: ITO SOFT DESIGN Inc.
Genres: Utilities, Lifestyle

The pocket calculator Woo Dentaku is simple.
It handles two sales tax rates and two tip rates.
And you can customize key assign.
All features are available as a free trial. Afterward, unlock the app via in-app purchase.

Function
- Basic four arithmetic operation functions
- Theme color (default, monochrome, red, blue, yellow)
- Display of input formula
- Constant calculation
- GT (grand total) function
- Memory function
- Max 24 significant digits
- Choose from 8, 10, 12, 16, 20, 24.
- Tax included calculated without tax
- Chip calculation
- Customizable key assigns
- Customizable key bindings between keyboard keys and calculator keys

Release notes:
Bugfix:
- crashing when changing rates.