Instagram Hits 50 Million Users [Headlines]
Photo sharing app had only 15 million users in January 2012, has grown by over 200% in four months.
2012 has been a big year for Instagram, and the photo sharing app has just hit another major milestone- 50 million users. The site has grown substantially during the first four months of the year, starting off 2012 with only 15 million users. Fast Company