We're sending more messages to our friends and family on our smartphones using dedicated chat apps instead of writing a text.
Almost 19 billion messages were sent per day last year via services like WhatsApp, Viber, iMessage or Blackberry Messenger.
That compares to just over 17 and a half billion texts.
Andrew Wooden from tech magazine T3 explains why the chat apps are taking over:
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The advantage of internet enabled devices like 3G or 4G allows users to send images, video and audio messages for free.
The Financial Times says smartphone messaging apps, "has done to SMS on mobile phones what Skype did to international calling on landlines."
250 million iPhones have been sold since Apple released its first generation model in June 2007.
Blackberry have sold 200 million units of their models and there were 750 million Andriod enabled devices by the third quarter of 2012.
Whatsapp had 300 million users as of December 2012. As of August last year, the app handled ten billion messages per day, up from two billion in April 2012 and one billion in October 2011.
Viber reached 175 million users as of February 26, 2013.
