A picture taken on April 10, 2012 shows the smartphone photo sharing application Instagram on an Iphone next to the Facebook application, one day after Facebook announced a billion-dollar-deal to buy the startup behind Instagram. The free mini-program lets people give classic looks to square photos using “filters” and then share them at Twitter, Facebook or other social networks. AFP PHOTO THOMAS COEX (Photo credit should read THOMAS COEX/AFP/Getty Images)