Calculator C Formula History

This is a calculator that allows history, automatic calculation of totals and consumption tax, and adjustment of button positions.
It's convenient to use when shopping with one hand due to its smooth operation.

■ Main features
- Button position adjustment
- Display of formulas and history
- Aggregation of calculation results
- Share calculation results and history with other apps, SNS share
- Clipboard copy
- History

■ Convenient usage
- You can tap the history to enter numbers. This is convenient when using the previous result.
- You can copy calculation results and history to the clipboard by tapping them.
- You can shift the placement of numeric buttons up, down, left, and right. This is convenient for one-handed operation and can be changed in the settings screen.