You can cancel a subscription to Premium without uninstalling the app. Cancelling a subscription has to be done by the user through Apple. You can find the instructions on Apple's support page here: https://support.apple.com/en-us/HT202039
You can cancel a subscription to Premium without uninstalling the app. Cancelling a subscription has to be done by the user through Apple. You can find the instructions on Apple's support page here: https://support.apple.com/en-us/HT202039