How many FAKE mobile apps are floating around - Almost a million (According to Trend)

Some are highly successful, here is a sample:
Scammers charged $3.99 for the fake app, which promised to prevent harmful apps from being installed. It was removed by Google after a few days, but not before it fooled thousands of users and even became a "top new paid app" in the Play Store. Trend said it was "perplexing" how the app achieved "top" status


The link below has more information:-
http://www.computerworld.com/s/article/9249779/Almost_a_million_fake_apps_are_targeting_your_phone