RPN Anywhere vs RPN Calc Usage & Stats

This is a simple RPN Calculator which can use on iPhone and Apple Watch. *** Important! *** This calculator uses reverse Polish notation for input, and the operation method is different from a normal calculator using infix notation. If you don't know about RPN Calculator, you should not purchase this app. How to use - All devices > Green up-arrow is ENTER button > Stack size can be changed at Setting Screen > Settings button is gear icon in keypad > Can change number format from Settings. - iPhone / iPad > Stack view is scrollable and can show all values in the stack > To delete a value in the stack, swipe left on the value in stack view and tap Delete button. > To delete last typed digit, swipe right on stack view > Swipe action can be modified at Settings Screen > Programs trace key operations registered in Program Settings Screen > Setting button is replaced as other actions button while editing programs - Apple Watch > To show values in stack, swipe down on anywhere on the screen > To back to main screen from stack view, swipe up on the screen > To show scientific operators, swipe up on the screen > To back to main screen from operators screen, swipe down on the screen > Stack view and program view is scrollable with digital crown > To delete last typed digit, swipe right on anywhere at Main screen > Program view shows all programs registered in iPhone. you can't register new program on Apple Watch