Terms of Service

PocketSave Pro is enabled via an auto-renewing subscription. Subscription automatically renews and will be charged unless auto-renew is turned off at least 24 hours before the end of the current period. Payment will be charged to your Apple Account (App Store billing account) at confirmation of purchase. Auto-renewal may be turned off by going to your Apple Account Settings after purchase. The duration and price of each subscription is shown on the purchase screen and confirmed at checkout.

For full legal terms, review Apple's Licensed Application End User License Agreement (EULA).

Source: apple.com/legal/internet-services/itunes/dev/stdeula