WhatsApp Keeps on Growing, Hits 700 Million Users

WhatsApp, the messaging service Facebook paid $19 billion for last February, has grown to 700 million monthly active users, up from 600 million in August, according to CEO Jan Koum.

That's more than 200 million new users since the Facebook acquisition. Users are also sending more than 30 billion messages per day, Koum said.

WhatsApp displayed on a Samsung Galaxy S4, left, and an iPhone.
Chris Ratcliffe | Bloomberg | Getty Images
WhatsApp displayed on a Samsung Galaxy S4, left, and an iPhone.

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Despite the massive user base, WhatsApp still doesn't have any plans to make money for Facebook (at least no plans the company is sharing). In October, Koum told Re/code that Facebook wasn't looking to monetize WhatsApp, and Facebook CEO Mark Zuckerberg has said in the past that he doesn't want to try to make money from WhatsApp until the service reaches a billion users.

Even at a couple hundred million new users per year, that means WhatsApp may still be a few years away from driving home some tangible revenue. (Some users already pay a small subscription fee.)

Read MoreFacebook acquires voice tech start-up Wit.ai

Tuesday's announcement is the latest growth milestone for Facebook, which now owns four products with more than 300 million active users apiece. Instagram hit that 300 million mark in December.

CNBC's parent NBCUniversal is an investor in Re/code's parent Revere Digital, and the companies have a content-sharing arrangement.