Speaking of calculators on android, I recently found an old silver link cable on ebay, which connects TI calculators to a computer, allowing me to dump the ROM of my old TI89. Loading up that rom in the ‘graph89’ emulator app is an amazing addition to a phone. Blows the socks off any calculator app.

But yes, fossify apps are simple. They do seem to be under active development, so hopefully they shape up nicely in the future.