Add: Calculator++

[Bakr-Ali]

Calculator++ https://git.bubu1.eu/Bubu/android-calculatorpp

https://f-droid.org/en/packages/org.solovyev.android.calculator/

[offa]

The upstream project seems not that active anymore, though Bubus project takes care of many issues (licensing, dependencies).

Update:

Unfortunately the app is not under active maintenance at the moment. Neither in this repository here (which is mainly concerned with f-droid packaging changes) nor upstream.

https://git.bubu1.eu/Bubu/android-calculatorpp/-/issues/2#note_1442

[offa]

@Bakr-Ali I'm closing here as the project is no longer maintained. Feel free to reopen in case an active development.