WPLMS APP vs PWA

Hello, I'm using last version of all, theme and plugins. With the PWA option, is it no longer necessary to buy the APP? If yes, why should I buy the APP and not use the PWA package or vice versa? Use [vibethemes] as user, reset the password, the email where you will receive the password is [[email protected]] Check: 1) Why after connecting as super admin from the frontend it asks me to connect again when I access the url / wp-admin? (synchronization between vibebp and wordpress is enabled) 2) Why don't I see the + sign to install the PWA? 3) Why isn't there a complete tutorial for the PWA? 4) Why can't I generate Service Worker on the /ht/wp-admin sub site? (It is the French version of the main site that is in Spanish)