Remember Facebook’s acquisition of Instagram, with some users on their misguided quest about how they intend to quit the service all because they didn’t want Facebook getting their private info? One would have thought Facebook’s presence would slow the photo sharing network’s growth but instead, users keep flocking Instagram.
The Instagram Android app has acquired over 500 million installs, a milestone that only a few apps on the Play Store can claim and majority of these apps comes from Google. 
August last year, Facebook Messenger passed this bar followed by the main Facebook app which managed to double the amount the following month.
Aside from Google and Facebook, only two other companies have made it this close, Skype and Samsung, whose Push Service has managed this many installs with most users not even aware that it exists.
It doesn’t seem like the service’s growth will slow down any time soon.
