In 2014, the number of users of Facebook Messenger was over 550 million.

Facebook Inc’s Messenger app surpassed 800 million users, the company said on Thursday, making it the fastest-growing app of 2015 according to research firm Nielsen.

Facebook was the top smartphone messenger application which had more than 126 million average unique users each month. In relation to Messenger, it recently announced that photo sharing in the feature was growing at a fast rate with over 9.5 billion photos sent each month alone. The company is also working with Uber Technologies, a ride-hailing app, to allow Messenger users to request a ride. David Marcus (ex-Paypal), who now heads Facebook’s messaging product, revealed that Facebook Messenger has crossed more than 800 million users.

Facebook is also testing a digital assistant called M, which operates through Messenger. This way, users aren’t forced to download an app for one objective anymore, since they can use Messenger for all of their social needs.

Please enter your email. However, you can be sure that whatever Facebook has in mind it’s going to be useful and cool at the same time.

In March, Facebook launched Businesses on Messenger, which enables Messenger users to interact with businesses via the app. For example, a shopper checking out on a retailer’s site might opt to receive shipping updates via Messenger, or later on use Messenger to chat with customer service about to ask about how to return an order.

Facebook posted an illustration (call it a mini infographic if you’d like) that lists all of the changes made past year, and some of the trends it looks to explore in 2016.

Marcus’s announcement included a recap of the flurry of new features released on Messenger in 2015, including its artificial intelligence assistant M, integration with Uber, and ways for third-parties to provide emojis and other content to users. Because, now, Messenger is a platform which can accomplish so many things other than sending a message online, the company is preparing the mobile app to become the primary platform for accessing online services like reaching to customer support, product purchases, etc. Plus it’s worth remembering that numerous messaging apps in common use now require phone numbers for security. Not only this, but Facebook owns WhatsApp as well. In fact, I may shift my primary chat communications away from texting, iOS Messages, Google Hangouts, Skype, and a few other services simply to embrace Facebook’s platform. “We believe we have so much more opportunity ahead of us, and these are still the early days of Messenger“. “We hope you’ll enjoy these improvements”, he said.