Vertical Calculator

Simple vertical calculator.

You can save caclulation list and load.
But, It just support 4 slots.
touch menu button or slide screen left or right.
That's my best way to do.

You can use with one hand !!

Different UI mode support.
horizontal / vertical
left side / right side

Function)
> double tab -> delete item
> long tab -> insert item or modify item or Note
> menu button : save & load calculate list


End :)