How do I update the Fitbit app?

[lavajak]

I have a new flex 2,replacing my HR and when I try to.  Add a device it says I must update the app.  How do I do that?

Moderator Edit: Clarified Subject.

[LZeeW]

@lavajak  Go to the App Store on your phone and check for updates in the lower right.

[MarcoGFitbit]

Hello @lavajak, it's a pleasure for me to welcome you to the Ftibit Community, I hope you're having a great day. I hope you're doing well too @LZeeW, thanks for your input about this situation.

@lavajak, as @LZeeW suggested, please go to the App Store and check if Fitbit is under the Updates list. If it is, update the app and try to set up your tracker as a new device. 

I hope this can be helpful, give it a try and let me know the outcome. 

[lavajak]

Thank you