Snapchat was first launched in July 2011 under the name “Picaboo,” and it was rebranded as Snapchat in September 2011.

Key dates

• July 8, 2011: The app debuts on iOS as Picaboo, created by Evan Spiegel, Bobby Murphy, and Reggie Brown while they were students at Stanford University.

• September 2011: Following a rebrand from Picaboo to Snapchat, the service begins to grow as a disappearing-photo messaging app.