How is flurry able to detect when a user installs an ios app from a provided link?

Question

Flurry can give you a URL that redirects to your app on the App Store, and they can tell you how many people install the app by using that URL. How do they do this?

Answer 1

I've found the answer on Quora, answered by the CTO of Flurry. They use various data points to tie a certain click to a certain user of the app. They claim to be about 90% accurate.

Data points they use include time of click vs time of install, device type, location of user, etc.

http://www.quora.com/Flurry/How-does-Flurry-user-acquisition-work-1