I'm very happy with CalcTastic, though it's not been updated since 2018 it still seems to work just fine. https://play.google.com/store/apps/details?id=com.sha

I'm very happy with CalcTastic, though it's not been updated since 2018 it still seems to work just fine. https://play.google.com/store/apps/details?id=com.shaytasticsoftware.calctasticfree https://play.google.com/store/apps/details?id=com.shaytastic...