05-30-2017 10:40
05-30-2017 10:40
Developers always create what the user wants to use, so I recommend upgrading to newer versions of IOS.
05-31-2017 08:49
05-31-2017 08:49
Hi there @dudoanketqua, thanks for joining the Community, it's great to have you on board!
As you mentioned, we always recommend to update the OS version of your phone to the latest one in order for the app to work correctly. Thank you for reminding us about this.
If you ever need assistance with the Fitbit app, please feel free to reply, I'll be happy to help.