I’m still using mathdroid. Which I have installed but cant find on fdroid anymore?
I can’t seem find another Foss calculator app that doesn’t think buttons need to bigger than my finger and 0-9 should take up 3/4 of the screen… I love being able to see history of my past entries and have a button layout similar to an actual scientific calculator.
You can use kodi on any old computer or a kodi device like Vero that uses OSMC. There are non official apps for most services. Some take a little time setting up, others just username and password. While kodi its self might not spy. The streaming services certainly still track what you watch.