[gamblor956]

You're comparing apples and oranges.

Everpix is an instagram competitor--it is a photo sharing app--and should be compared to instagram. BTW, in case you haven't noticed--Facebook bought instagram last year, and even before that it allow users to attach meta data (location, etc.) to their photo uploads.

Whatsapp is a text messaging app, and should be compared to iMessage, Google Talk, Skype, and SMS. In that regards, its clear why WhatsApp succeeded--it was the default messaging app in dozens of countries.

The price is baffling, sure, but the reason that Whatsapp survived and Everpix did not is pretty clear. Whatsapp scaled, and Everpix did not. Text messages take up a few bytes; pictures take up a few megabytes. They could probably fit multiple users' entire messaging histories in the space that a single photo took up. Bandwidth costs--also a fraction of Everpix's. Rent and other fixed costs--definitely a fraction of Everpixs, which chose to situate itself in one of the most expensive locations in the world for a business with minimal revenue.