I (the developer) do not collect any data by using this application.
The application does not contain analytics libraries such as Google Analytics, nor does HealthNote itself attempt to collect or analyze any of the information you enter.
All of the information you enter is only saved locally on your device and in your iCloud account, and is not available to me or anyone else who doesn't have access to your iCloud account.The information saved on iCloud makes it possible to sync data between your devices.
Apple may provide me with stack tracking via iTunes when the app crashes. This only applies if the Share analytics with developer option is selected during device setup.
This applies to every app installed on the device and can be changed at any time by going to System Settings -> Privacy -> Analytics -> Share with app developer.