> Does my windows license cover the app version or do I need the pro
> version of the app to get notifications from my Windows version?
The free version of the app contains all features to get update notifications from the Windows version of WebSite-Watcher.
The App can also check bookmarks on its own (independently of the Windows version), here the number of bookmarks is limited in the Free version.
See also the videos at https://www.aignes.com/app/ which show how to setup notifications.