Contour is licensed to you under Apple's Standard Licensed Application End User License Agreement (EULA). The paywall and Settings in the app link to the same agreement.
Licence
Your use of Contour is governed by Apple's Standard EULA, available at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Subscriptions
Portfolio Pro is sold through the App Store as a monthly or annual auto-renewing subscription, or a one-time lifetime purchase. Apple handles billing, renewal and cancellation. Subscriptions renew automatically unless cancelled in your Apple Account settings at least 24 hours before the end of the current period.
Not financial advice
Contour shows information about your own holdings. It is not financial advice, and market data may be delayed, incomplete or unavailable.