Cannot download Fitbit app on iPhone 5

[CarrieP1984]

Hi.  I am brand new to the Fitbit world.  Just bought a used Fitbit Alta HR off Facebook Marketplace.  The fitbit itself is working fine.  However, my iphone 5 can't seem to download the FitBit Tracker app, and it also won't seem to sync via bluetooth with my fitbit alta.  I really want to be able to sync my steps with some sort of app to log my daily progress.  Does anyone know of any ways to make this work on an old iphone?  Are there are other non-Fitbit brand apps that will work instead?  Help!  I feel like I just wasted my money on a Fitbit for no reason.  Thank you.

Moderator Edit: Clarified subject

[CarrieP1984]

Also, my Mac laptop is probably ten years old and can't seem to connect to my FitBit Alta HR via bluetooth either.  I'm at a loss.  Is there any way to keep my Fitbit Alta or should I just sell it now?

[SunsetRunner]

Hello @CarrieP1984 

I understand your trying to install the Fitbit App on your iPhone 5. Unfortunately the iPhone 5 is not compatible with the Fitbit App. From my understanding there is no way to force the app to install to make it work on your phone as you asked. I’m sorry I couldn’t be more help but do hope this has answered your question. 

[lindalsj22]

Hi,

Does not work on Iphone 6 plus either, need 13.0 or higher. So have to buy new phone as well as new fitbit!!

[LZeeW]

Hello @lindalsj22 and welcome to the Help forum.  Apple doesn't support the iPhone 6 and 6 Plus anymore.  This means that you don't get security updates.  Apple recently released an important security update that you did not get.  So it is a very good idea to get a new phone.