SkyVPN is compatible with iOS operating system including iOS14 and can be used on all iPhones with iOS system including iPhone 12 and iPhone 12 Pro.
You may manage your Premium subscription for iOS through your App Store account settings. Please take the following steps to manage your subscription:
Go to Settings >> iTunes & App Store.
Tap your Apple ID on top of the screen
Tap ‘View Apple ID’. You might need to sign in using your password or Touch ID.
Tap the subscription that you want to manage.
Use the options to manage your subscription
Click here for more details: https://support.apple.com/en-us/HT202039