Limitation of free version
Regarding Studio tab: The portion of the movie that exceeds 30 seconds is cut and watermark image will be added.
Regarding Video tab: Watermark image will be added. (There is no 30 seconds limit.)
Ads are displayed.
About Pro add-on
You can purchase pro add-on in the app. This is no consumable item so you can restore when you re-install the app.