Mobile carriers had been caught injecting special tracking mechanisms into their user’s web surfing activities. Because they are embedded at the network level, users cannot block these “supercookies”. Such tracking mechanisms allow for the creation of rich user data profiles and for
their use in advertising and tracking.
I have no doubt your app blocked 350 tracking attempts. I doubt it made a difference.
i posted this above, and its quite indepth, but if you get even part way through it, you will realise how futile it is.