Popular for its real-time 'Street Chat' messaging application in the West African country, Saya's platform includes social network integration, location-based and group chat across multiple phone platforms such as J2ME, Android and iOS.

"Though we wanted to create a world class product made by Africans, for Africans, we remain focused on empowering millions of mobile subscribers worldwide," Saya chief executive Robert Lamptey said in the statement.

Saya was incubated in 2011 at the Meltwater Entrepreneurial School of Technology, which trains, mentors and invests in technology start-ups at Accra in Ghana.

As a leader in voice messaging and social media apps that enable mobile subscribers to have a voice and share their stories with their family and friends the world over, Kirusa offers product solutions like InstaVoice, Celeb Connect and Sports Connect to about 80 million users across Africa, India, Latin America and West Asia.

Built on patented technology, the company's apps are scalable, multimodal and cloud platforms, which process over a billion events a month.

Saya's investors include the Meltwater Foundation, Forward Partners and Progress through Business.

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