If you know an APL-like or are willing to learn enough to use as a calculator (there are unfortunately some uncommon things like % being division), there's J on

If you know an APL-like or are willing to learn enough to use as a calculator (there are unfortunately some uncommon things like % being division), there's J on iOS: https://apps.apple.com/us/app/j901/id1483497239 https://apps.apple.com/us/app/j901/id1483497239. There ought to be a way to get it on Android. I have an older version of it and it works fine although the keyboard is a little clunky. However, you need to swipe to get to previous computations. I'm not sure if they changed that in the new version.