Platform license is based on a system key (based on network hardware and profile). So, a license cannot be used across different machines; each machine needs a different license.
The default 3-user license does not require activation.
There are now 2 types of apps: normal apps and "protected" apps.
Normal Apps:
Normal apps are the current apps that behave as usual.
Exported app definition is still stored in plain XML and works across both Community Edition and Enterprise Edition.
Protected Apps:
Protected apps are those that require an app license to function.
"Protected App" (and expiry date, if applicable) is displayed in the Design App page.
Exported app definition is encrypted, and form definition in DB is also encrypted.
By default, an app license is tied to the specific app ID and the "Licensed To" string in the platform license. For example, if you have 2 machines with platform licenses issued to "Company XYZ, Inc.", the same app license can be used on both.
There is an optional feature to support app-level activation (i.e., apps can also be tied to the system key).
There is an optional feature to preserve the app design - known as "Protected Readonly App".
App licenses can also have expiry dates.
Protected apps with invalid/expired licenses will display a form to key in the app license.
Joget License Based On Total Apps
You can request for a Joget license with apps count protection. For example, request a Joget license for unlimited users for a maximum of three apps only. The app license count applies to the first three apps based on appId in ascending order for published apps.
To exclude the app center from being counted, you can delete the default app center app and use the setting in "System Settings > General Settings > Default Userview" to another app.