Set Genie does not store or have access to any user's payment, contact, or other personal information.
Set Genie analyzes saved setlists in order to improve the accuracy of generated setlists. This metadata is not shared with the developer or any third party, and never leaves the device, except when using iCloud to sync data between devices.
On iOS 13 and higher, and macOS 10.15 Catalina and higher, Set Genie can sync all data between devices linked to a user's iCloud account. This feature is enabled by default, but can be disabled if desired. See section 10.4 (Enable or Disable Sync) in the user manual.