The first Instagram application was released in 2010 and got popular very fast so after 2 years they have 27 millions users. The application got reward for "App for the year" on Apples announce of iPhone 4S and from then the number of users for Instagram growing fast.
For those who dont know Instagram is app for iPhone for taking pictures, adding filters on them for more pro look and share them on social networks.
Check out the video below for Instagram:
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