
<p>Founded in 2009 by two ex- Yahoo employees Brian Acton and Jan Koum, WhatsApp is one of the earliest entrants into the field.</p><p>Related Stories</p><p>London - In a rare moment of self-promotion, the notoriously press-shy WhatsApp has published usage statistics, revealing to the Wall Street Journal that it now attracts more than 250 million active monthly users.</p><p>The company also revealed that inbound traffic on the app (messages sent) had doubled every six months up to March and that on June 13 they hit a new daily record of 27 billion messages handled in 24 hours.</p><p><a href="http://www.iol.co.za/scitech/technology/software/instant-messaging-takes-over-1.1539927">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.thisismoney.co.uk/money/guides/article-2351559/Texts-We-prefer-chat-online-is.html">App and away: Nina Vainorius prefers instant messages to texting</a> (This is Money)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=d73yH1fPF7rJ1XMtSmXXuL-f--_5M&ned=us">2 additional articles.</a></p>