When using my apps, permission may be requested for access to photos, camera, or music library data. These data, or data derived from them, only leaves the app when the user explicitly chooses to share them.
Similarly, data produced in any of my apps only leaves the app when you explicitly choose to share those data.
All shared data are only directly communicated with Apple’s API: the data are then only passed to a third party if you explicitly choose to.
My apps use iCloud to store configuration and settings data. My apps also communicate with the App Store to allow you to purchase additional features. My apps do not communicate with any other third parties.