How do free apps (WeChat, Line, WhatsApp) make money?
WeChat's popularity is increasing day by day, even they are spending crores on Advertisement.
Recently 'Line' another free app has started spending bucks on advertisements.
I was just wondering how these free apps makes money? Can you think of a way how these apps makes money to keep them in business (the expenses I can think off, some solid servers, Advertisements, staff, development and maintenance cost).
Any Clue?
-CB