FitBoom Pro is a continuous subscription service (monthly/yearly). After confirming your purchase, payment will be charged to your Apple ID account and will automatically renew 24 hours before the end of each billing cycle unless you manually cancel at least 24 hours before the end of the current period.

You can manage or cancel your subscription at any time through iOS 'Settings' > 'Apple ID' > 'Subscriptions'. After cancellation, your membership benefits will remain available until the end of the current period.