Should you choose to subscribe to Flow Speed Control Professional, the purchase will be charged to your iTunes account. The subscription will be auto-renewed 24 hours prior to it running out and you can manage it from User Settings in iTunes after purchasing it, and you’ll also be able to cancel the auto-renewing subscription from there.
Subscriptions are handled by Apple. Follow the steps below to view, change, or cancel your subscriptions from your iPhone, iPad, or iPod touch, or your computer.
On your iPhone, iPad, or iPod touch:
On the Home screen, tap Settings.
Tap iTunes and App Store.
Tap your Apple ID.
View Apple ID. You might need to sign in.
Under Subscriptions, tap Manage. If you don’t see a subscription in iTunes and are still being charged, make sure that you’re signed in with the correct Apple ID.
Tap the subscription that you want to manage.
Use the options to manage your subscription. You can choose a different subscription period, or turn off Automatic Renewal.
Turn off Automatic Renewal to cancel a subscription. Your subscription will stop at the end of the current billing cycle.
On you Mac or PC:
Open iTunes.
Click Sign in and enter your Apple ID.
Click your name, and select Account info from the drop-down menu.
Enter your password again.
On the account information screen:
Scroll to the Settings section.
To the right of Subscriptions, click Manage. If you don’t see a subscription in iTunes and are still being charged, make sure that you’re signed in with the correct Apple ID.
Choose the subscription you want to manage.
Use the options to manage your subscription. You can choose a different subscription period, or turn off Automatic Renewal.
Turn off Automatic Renewal to cancel a subscription. Your subscription will stop at the end of the current billing cycle.