Video calling services such as Skype and FaceTime are driving the growth of the still young mobile platform. Skype recently revamped its mobile services with new technology to boost its 60 million iOS users.
With results like this, US-based analyst NPD In-Stat believes active video calling users will pass 380 million in 2015.
That's a growth of approximately 320 million in five years when compared to the 63 million users in 2010.
Amy Cravens, senior analyst, said: "While the mobile arena is relatively nascent, it has fuelled much of the growth in usage over the course of 2011. The entry of players with significant market presence has been critical in pushing mass adoption in mobile video calling.
"Currently, the living room market is still quite small; however, In-Stat expects to see significant developments in this market in the coming years."