To be honest, I'd have to do some digging around to get exact versions of a fair amount of my software on my latop- much of it isn't immediately surfaced in the UI, and where it was installed from could be from several places.

In android, every app version is found in the exact same place on my phone:

Settings > Apps > (select an app) > very bottom has version number. App details takes you to the full details page in the play store, which shows the full name of the app and the publisher name.