Social media giant Facebook has announced that it is to buy instant messenger WhatsApp for $16bn (€11.64bn).
WhatsApp regularly tops the most popular application charts, is seen an alternative to text messages and has more than 450m monthly global users.
The deal comprises $4bn (€2.91bn) in cash and $12bn (€8.74bn) worth of Facebook shares.
The agreement also provides for an additional $3bn (€2.18bn) in restricted stock units to be granted to WhatsApp’s founders and employees to be paid in four years.
Around 70% of WhatsApp’s monthly 450m users use the application every day, Facebook said.
Mark Zuckerberg, founder and chief executive of Facebook, said: “WhatsApp is on a path to connect one billion people. The services that reach that milestone are all incredibly valuable.”
Jan Koum, co-founder and chief executive of WhatsApp, said: “WhatsApp’s extremely high user engagement and rapid growth are driven by the simple, powerful and instantaneous messaging capabilities we provide.
“We’re excited and honoured to partner with Mark and Facebook as we continue to bring our product to more people around the world.”
The WhatsApp brand will be maintained, and its headquarters will remain in Mountain View, California.
Mr Koum will join Facebook’s board of directors, and WhatsApp’s core messaging product and Facebook’s existing Messenger app will continue to operate as stand alone applications.
The new move from Facebook comes after it recently reported record revenues of 2.5bn (€1.82bn) from 750m daily users.
The end of quarter results, published at the end of last month, showed a revenue rise of $1bn (€728.08m) on the same period last year.
A total of 757m people used the world’s biggest social media platform every day between October and December, up from 618m the same time in 2012.
In 2012, Facebook bought photo sharing social media site Instagram for $1bn (€728.08m).