I see your point. I think cross-promotion, if done right, can drive some very engaged users. In both cases, it's a true organic user. However, with this, it's likely you're getting users with better engagement than a random user browsing through the store. A lot of developers have integrated our app discovery grid with a button that the user chooses to tap on. This results in installs from dedicated users who are already engaged with that developer's apps and chose to view it in an effort to find more of the developer's apps or apps the developer would recommend.

Although this doesn't contain the control data you're curious about, here's an example of the results one of the developers on our platform is seeing: http://easytigerapps.tumblr.com/post/78759270430/developers-....