To sync MyFitnessPal (on IOS):
Navigate to the MyFitnessPal app and tap to open
Tap on the More tab by selecting "..."
Tap on Apps & Devices
Search and tap on the Health app
Tap on Settings to connect MyFitnessPal to Apple Health
Make sure Allow “MyFitnessPal” to Read Data > Workouts is turned to ON to sync your workouts between both apps
Note: Do not forget to tap "Allow" to save all the changes you will make under Health Access.
You can also set this up directly in the Apple Health app:
Navigate to the Health app on your phone and tap to open
Tap on Profile in the top right corner
Scroll to Privacy and tap on Apps
Tap on MyFitnessPal
Make sure it is set to "TURN ON ALL" to sync your workouts between both apps
Repeat the same steps for FitOn if you haven’t already done so
To sync MyFitnessPal (on Android):
Navigate to the MyFitnessPal app and tap to open
Once the app is open, tap on the More tab
Tap on Apps & Devices
Scroll down and tap on Google Fit
Then, tap on Connect under the Google Fit icon
You will be prompted to tap Allow to give MyfitnessPal access to your physical activity
Check the boxes of all of the settings you want to be shared and tap Continue
Choose an account or add one to continue to MyFitnessPal and tap Allow to give MyFitnessPal access to your Google Account
Then, navigate to the FitOn app and tap to open it
Go to Profile> Settings> Tap on Google Fit at the top of the screen
Tap on Allow to give FitOn access to your physical activity data
NOTE: If you have multiple accounts, once you have tapped "Allow" you will be prompted to choose an account or add an account to sync the data with. Tap "Allow" to allow access to your account
You will be notified that your account has been linked when it is done