In some cases, some installs might appear as they were made via different kind of stores (apk, stores that are not Google Play or App Store).
Please note that Appnext does not control the final link to the store. This is done by the attribution company who supply the tracking link is responsible for this redirect, and not Appnext.
Here at Appnext, we work only with advertisers who’s tracking link directs the users to either Google Play or App Store only (Android or iOS accordingly), This is part of our commitment to our publishers users experience.
There is a scenario in which a user will click on a link directing him or her to the store but will be directing to an alternative app store (on Android) this may happen if the device have an alternative store app installed, making it a user’s choice whether to redirect to alternative store or not, without any control from our end.