Snapchat was developed by former Stanford University students Evan Spiegel and Robert Murphy and was initially released on iOS in September 2011. The Android version was officially launched on November 29, 2012. So far, there are no plans to develop the app for Windows Phone or BlackBerry, but both platforms have some 3rd party alternatives available.
Snapchat’s claim to fame is its ability to set limits on how long users can view snaps, ranging from one to ten seconds. However, the Stories feature allows users to share snaps with all of their friends at once and are able to be seen for up to 24 hours. Snapchat also launched Replay mode in December 2013 that allows users to replay one snap sent privately from a friend as much as they wish for up to 24 hours.
In November 2013, Facebook made a $3 billion offer for Snapchat, which Snapchat declined, citing a desire to grow and expand further before being acquired.
As of November 20, 2013, 400 million snaps were sent daily by users.