The tennis scoring app "Tennistrend" on the Apple App Store does not transmit any of the data either entered by the user or generated by the operation of the app beyond the iOS device on which it is used.

Furthermore, even within the app no data is used for any commercial purpose e.g. to serve advertising, or otherwise in any way to attempt to monetise the data.

The app user has complete control over their data and its confidentiality, and may transfer any app data (e.g. by screen shot) to other apps operating on the iOS device.

Thus "Tennistrend" data is not subject to any privacy policy, neither implicit nor that needs to be actively agreed to by the user.