Searching for calculators on F-Droid brings not as much results as expected, mainly Calculator by Simple Mobile Tools, the classic one and this notification calculator. I was thinking there would be more open source calculators out in the wild so anyone who knows an alternative is welcome to post here. Thanks!
Add Izzy’s repo and the kde repo.
There are quite a few to choose from.
cannot claim that this is a complete list (it is not). But maybe it helps nevertheless.
The diagram includes 3 apps available from Izzy’s repo and the kde repo as proposed by craigevil
(the diagram was generated with ./app_match.R -f index-v1.json,izzy/index-v1.json,kde.org/index-v1.json,tagesschau/index-v1.json -d multi_repo -m 0xff -v 3 -n 20 )
Thanks for your suggestions! They look great.
IIRC the GeoGebra apps are open source but they are not in F-droid so maybe someone could try and get them into F-droid.
GeoGebra is not compatible with F-Droid as their license only allows free usage for non-commercial stuff.
But the software is great though.