I’ve been using a physical 42S and emulator on my phone for years. The down side is that the keys and display font are small. Apple default calculator app, on the other hand, have very large font and large key size, but it’s not RPN. This calculator here has the potential to be a great alternative to both, but it’s not (yet).
1. Stack display is a bit confusing. Took me a while to figure out Y is on top left corner, and then the next 3 levels up on the right. It would be more consistent if you skip the top left corner position, and just have the stack on the right.
2. While alternate functions are activated by long pressing the number keys/layer, in the advanced function keys/layer, it requires pressing ALT then another key. Why the different behavior?
3. Store/recall does not work at all.
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