HK2Fit exports your workouts in .FIT format, so you can easily import them after that to third party fitness platforms.
The app needs your permission to read data from the Health App in order to export your stored workouts in HealthKit from Apple watch and third party sources.
HK2Fit doesn't collect any statistics about the user's behavior.
HK2Fit doesn't transmit any data to own servers or share personal data with third parties.