Current BETA version can be used for free until the expiration date. This applies to business and private users.
Licensed version will become available as in-app-purchases from the app stores (Windows/Android/iOS).
Possibly there will always be a basic free version, too.
For info, please also check the “Future Release Schedule” info in our website https://forum.spacedesk.net.
As a further question to the license, is it possible to have non app store linked purchases?
I have an older tablet from Acer that suffers from speed issues if it’s signed into Google and PlayStore is active. I’ve used the beta with it without playstore and it runs great for my needs, but if I had to have Playstore running, it would reduce how usable it would be. Chances are others may even have tablets that don’t have play store.