Soaring Book Runway does not share any data with anyone at all except when you decide to do so yourself by sharing an activity on Facebook, Twitter, ...
Non-identifiable usage analytics for web sites and apps are tracked using Fabric. We use Fabric for crash loggin so that we can identifie issues even faster.
You can opt-in to the yearly subscription plan that allows you to use Soaring Book Runway with unlimited flights. It will also be possible to modify all the properties of each flight whenever you want.
Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period.
Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase.