Integrate Fitbit with a custom web/mobile application

[sasmitanair]

I am working on a client requirement which is to track a bunch of fitbit devices through a custom application and then advice the users based on the readings.

But the client is concerned about the privacy of the fitbit users. 

I know that I can register the fitbit devices and invoke the reading through APIs:

https://dev.fitbit.com/build/reference/web-api/activity/

But is there a way to anonymously track the activities of the fitbit users without having to share their fitbit device details? The client does not want to track it's users via GPS or register the user's fitbit devices. Is there any other means?

I know it is a silly question, still I want to be sure whether the answer is a YES or a NO.

[GordonFitbit]

Hi @sasmitanair ,

I think there is a way your application can retrieve the data and make your user's information anonymous.  Would you give me some more details on the type of data you need to collect?   I'll make a recommendation to you.

Gordon