According to WhatsApp CEO Jan Koum, the app now has at least 700 million active users per month, up from 600 million in August last year. Whats more, users are sending more than 30 billion messages per day through the service.
Despite the massive user base, WhatsApp still doesnt have any plans to make money for Facebook (at least no plans the company is sharing). In October, Koum told Re/code that Facebook wasnt looking to monetize WhatsApp, and Facebook CEO Mark Zuckerberg has said in the past that he doesnt want to try to make money from WhatsApp until the service reaches a billion users.
WhatsApp is free to use for the first year, with each year thereafter requiring a $0.99 subscription fee.
WhatsApp is available on Android, BlackBerry, Nokia S40, Symbian, Windows Phone, and, of course, iOS.
The official iOS app of WhatsApp, which is optimized for iPhone and iPod touch, was last updated in November, with full resolution support for iPhone 6 and iPhone 6 Plus. Also that month, WhatsApp received a backend update that enabled the display of blue double check marks to indicate message read receipts.
As for its long-awaited voice calling capability, WhatsApp is not expected to be updated with the highly requested feature until the first quarter of this year, owing to certain technical challenges.