[Vingdoloras]

I'm a big fan of https://soulver.app/ as a mobile app (not a heavy Mac user, but if I was, I'd get the Mac version too). Sadly it's not available on Windows at all, and the mobile version is currently not on the App Store either (they're working on a major update and apparently you can still get the old one via TestFlight, but I just kept the old one installed on my phone).

This app looks like a great alternative! I will definitely be checking it out.

[kall]

http://calca.io is a decent alternative that‘s available on Windows and still maintained on mobile.