My Calculator - Copy and Paste app for iPhone and iPad

Calculations can be displayed and entered in multiple lines in real time, and numbers and results can be changed anywhere.
For example, compare two combined products with a higher unit price.
You can also copy calculation results or paste calculation data between different applications.
For example, if you write a formula in WeChat: 2 times 3, or 2*3, etc., copy it and wrap multiple lines.
You can also copy and paste calculations, results, individually/as a whole, into WeChat. Let a friend know the calculation process.
The huge keys easily get rid of the confusion of big fingers.
An extremely simple and practical calculator that can be used for simple calculations by everyone.
You can get started easily without spending any learning cost.

The following are the specific functions:
1. Display the input process and calculation history in real time (can be cleared).
2. Supports input and modification of multiple lines at the same time to facilitate comparison, such as comparing the unit price of two combined products, which one has the higher unit price?
3. Rows can be deleted. Contains a backspace key to delete incorrect entries.
4. Sum all results
5. Keyboard can be hidden
6. Zoom in and out of text with gestures
7. Whole copy and whole paste
8. Native copy and paste, you can copy and paste between different apps.
9. Restart the APP and the history will not be lost.
10. Keyboard sounds and vibrations
11. Light and dark themes
12. Show/hide thousands separator
13. Symbols are colored/hidden
14. Supports more than 10 languages including Simplified Chinese, Traditional Chinese, English, Spanish, German, French, and Japanese.

I wish you a happy use!