Can we generate revenue with messaging apps?

Yes, Ofcourse we make revenue with some of the messaging apps. Unlike Whatsapp, different messaging apps are available for the revenue models. Whatsapp has limited it's services. But some other like Wechat, Line, Facebook has this type of feature. Last month, it has been observed that Line's revenue has increased for the fourth quarter of 2013 more than five fold to 12.2 billion from 2.2 billion. Like Line, Wechat has also upgraded a lot.