Installs are reported by the advertiser to our server in 3 ways:
Appnext Tracking SDK – implemented on advertiser apps.
3rd party Tracking solution – such as Appsflyer, Tune, etc, which Appnext is fully integrated with. Appnext has an integration in place with most tracking solutions in the industry.
S2S integration – The advertiser server itself reports the install to Appnext servers.
In any case, an install is reported only when the user opened the installed app for the first time.