An iOS mobile app that revolutionises the way teachers mark scripts. This calculator is different from any ordinary calculator as it computes cumulative sum at every button press. It is also designed to minimise any button presses by the use of swipe and longpress gestures.
Hold the button and release.
Swipe right across the blue buttons.
Swipe left across the blue buttons.
The app only requires user's permission to write to storage files when the user wishes to save the data.
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