Mobile messaging platform WhatsApp has added 50m users in less than two months to reach 300m active users, according to a report from tech site CNET.
After four years in operation, the company has announced it will add voice messaging to the platform.
"Today, we're proud to announce that WhatsApp has surpassed 300m monthly active users worldwide, a milestone on the road to WhatsApp becoming the communication network of the 21st century," said a company spokesperson.
"On this occasion, we are also excited to introduce voice messaging, a new feature that will allow our customers to quickly and easily communicate in real time using voice messages with friends and family, whether they're across the room or thousands of miles away."
The voice addition will be a push-to-talk function that will allow users to send a recorded audio clip as part of their message. While not a live, two-way communication mode, the service is expected to keep the platform attractive to younger users. The feature is to be rolled out to all platforms within 24 hours according to AllThingsDigital.
Available for download on iOS, Android, BlackBerry, Windows Phone, and Symbian devices, WhatsApp first gained popularity as a service that provided a cheap alternative to SMS. In a single-day record in June, the platform processed 27bn messages, according to the company. Today WhatsApp claims it processes 11bn sent messages and 20bn received messages, for a daily total of 31bn, and daily image uploads of 325m.