Instagram is an online photo-sharing, video-sharing and social networking service that enables its users to take pictures and videos, apply digital filters to them, and share them on a variety of social networking services, such as Facebook, Twitter, Tumblr and Flickr. A distinctive feature is that it confines photos to a square shape, similar to Kodak Instamatic and Polaroid images, in contrast to the 16:9 aspect ratio now typically used by mobile device cameras. Users are also able to record and share short videos lasting for up to 15 seconds.
Instagram was created by Kevin Systrom and Mike Krieger and launched in October 2010. The service rapidly gained popularity, with over 100 million active users Template:As of. Instagram is distributed through the Apple App Store, Google Play, and Windows Phone Store. Support was originally available for only the iPhone, iPad, and iPod Touch; in April 2012, support was added for Android camera phones. Third-party Instagram apps are available for Blackberry 10 and Nokia-Symbian Devices. On October 22, 2013, during the Nokia World at Abu Dhabi, UAE, Kevin Systrom has confirmed that official Instagram app for Windows Phone will be available in the coming weeks. On November 21, 2013, the official Instagram Beta for Windows Phone has been released to Windows Phone 8 to allow Windows Phone user to get faster access to Instagram services although the app is still under development with lack of video recording and capture image through app. The service was acquired by Facebook in April 2012 for approximately US$1 billion in cash and stock. In 2013, Instagram grew by 23%, while Facebook, as the mother company, only grew by 3%.
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