Its great for the app store if people mistakenly download the wrong app. They can increase the total downloads stats for more than one app that way. And it creates more "engagement' with the app store. They don't care that it's "forced" engagement
It blocks robocalls. When someone calls you it checks the call against a database of robocallers and blocks known spam calls. It can also screen calls. It works pretty well, but it's not worth $7/week.
