Subscribing to KineMaster Premium removes all the ads and the KineMaster watermark and give you access to all the Premium assets.
There are two subscription plans: Monthly subscription and Annual subscription. Monthly subscription is billed each month unless you actively cancel it. Annual subscription is renewed every year unless you actively cancel it as well.
All prices are shown in your local currency on the purchase screen (KineMaster >> Create >> tap on the Crown icon on the upper left of the screen).
Subscriptions can be purchased by tapping Create >> tap on the Crown icon on the upper left of the screen and select your desired subscription plan or by tapping the trash bin icon that's shown in your editing screen.
Please note: If you purchased a subscription and you cancel it, you can still use it for the time you paid for.