Facebook-owned WhatsApp has announced it is celebrating its 12th birthday, and has shared some more usage stats of how far it has come.

“More than two billion users turn to WhatsApp each month to send 100 billion messages and to connect more than one billion calls each day,” said WhatsApp on Wednesday.

WhatsApp was incorporated on February 24, 2009, by founder Jan Koum, a former Yahoo! employee. The app launched in the App Store for the iPhone in August of that year. Brian Acton, a former Yahoo! employee joined WhatsApp later in October 2009.

Facebook acquired WhatsApp for $19 billion in February 2014. Since then, both Koum and Acton have departed the company, over conflicting stances over privacy issues with Facebook.

“We are and will continue to be committed to your privacy with end-to-end encryption. Always and forever. Happy 12 years WhatsApp!,” it added.

Recently, WhatApp announced it would again go ahead with its new privacy policy, deemed controversial. If users do not accept new terms, they will have limited functions of the messaging app.