How to identify a user after installing an ios/android application?

Question

Mobile development

The challenge is this:

1. User or multiple users (web) go to app.com/xxxxx
   
2. It redirects them to install the application in the Apple Store / Play Market
   
3. After installation and registration in the application, the user gets access to certain content without having to re-follow the link from point 1 (deep link)
   

That is, the question is whether it is possible to transfer some variables through the Apple Store / Play Market.
Or does such matching happen in some other way? I suppose that it is possible to collect some user data when clicking on the link (ip, device ID) and then the application, after installation already, determines the user from this data.

Answer 1

The first opening of the application after installation will be carried out with INSTALL_REFERRER, which will contain a link that was used to go to the Play Market - https://developers.google.com/analytics/devguides/...