I actually love this calculator, but after the lastest update two days ago, the standard version will not let you type in more than four digits and will go back to 0 if you try to add a 5th or more, it‘s pretty useless now.
Updated Review: They fixed the bug and it‘s back to the great original version. It‘s one of the few calculators I‘ve found that has a back button, enabling the user to erase just the last digit if you mistype, instead of starting over, as well as being able to pull up the calculation history and i.e. take a prior total as a starting point for a new / additional calculation.
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