I ran into a problem like this once, and after banging my head against the wall for days it turned out the solution was just running

sudo apt autoremove

That took care of removing a bunch of old stuff in the boot partition that I will not pretend to understand.

You sure you need an app that converts Celsius to Fahrenheit to access your location? Do you even need an app for that at all? The default calculator, Siri, and iOS search can all do it for you.