Annoying to use – All in One Calculator Review

On my iPad Pro this app ‘blinks’ every time I enter a number and two taps of the enter key are required to put a number in the stack. Most of the time the keypad is unresponsive to entering numbers (as opposed to the immediate and positive keystrokes with which I am typing this review). Lastly, trying to enter an exponent, such as 10 E-6 using the y^x function yields 0.
Review by cant even launch review on All in One Calculator.