zeet

Realcalc has an excellent RPN mode (enabled through Calculator Type in Settings). I’ve used it for the last six years or so (technically, in the premium version of the app).

Edit: Not open source - sorry, didn’t see the community!

I use BetterOpenWith. It lets you set defaults or gives you a selection of apps to choose from for a wide variety of file types / protocols:

https://play.google.com/store/apps/details?id=com.aboutmycode.betteropenwith

After the longest drought in recent memory, some over at deathlist.net see Jimmy Carter as the key log to unleash a torrent of deaths in the latter half of 2024…

It was at that point Striker realised anyone on a phone would not be using a mouse.