You can cancel your subscription by following the steps below:
1. Launch 'Settings' app >> iTunes & App Store.
2. Tap on your Apple ID.
3. Choose View Apple ID when the popup window appears >> Enter your Apple ID password or fingerprint ID when prompted.
4. Choose Subscriptions >> KineMaster >> Cancel Subscription.
Note: Uninstalling KineMaster will not cancel your subscription. In case you uninstall KineMaster but don't cancel your subscription, you will still be charged for the monthly/annual subscription— you must actively unsubscribe following the process above.
For more information, please visit the following site: