After choosing your subscription model you can use Outbank 14 days for free. Until the end of this free period you don't have to pay the subscription.

If you don't want to use Outbank after this free test period, you can cancel your subscription in the App Store (iOS & macOS) or the PlayStore (Android):
Open the Outbank Settings > Subscription Details > Manage Subscription > Outbank forwards you to the App Store

The 14-days test applies once per customer.