xDrip » Features » Follow » Remove xDrip sync follower
If you no longer want a follower to be able to follow you, you must disable it on the follower’s side.
If that isn’t possible, the only option is to change the group security sync key, as explained below.
1- On the master device, go to the sync setup page.
2- Delete the sync key.
3- Return to the main screen.
4- Go back to the sync page—you will see that a new sync key has been created for you.
Finally, update all the followers you want to keep with this new sync key.