Working on adding features to my app. I wrote BVCalc because I wanted a calculator that would show not only the numerical result value but also show the corresponding algebraic expression that I entered so that I could check for entry mistakes and more easily keep track of calculations. I also wanted this feature to work even when the calculator is in RPN mode. That is, I wanted to be able to use RPN entry, and have the calculator show both the result value and the corresponding algebraic expression (displayed using infix notation, not RPN) for each item on the stack.

I was surprised that such a feature was not available on any existing calculators and so I wrote my own. Runs on macOS, iPhone, and iPad.

BVCalc Lite (free version, no ads): https://apps.apple.com/app/bvcalc-lite/id6544784034

BVCalc (paid version): https://apps.apple.com/app/bvcalc/id6560108221