Facebook announced that it would bring Messenger, its popular messaging client to Mac and Windows later this year. The announcement was made during the F8 developer conference in San Jose, California. A report showed that there are more mobile phones in the world than desktop computers and the pace of development for computers has slowed accordingly. A dedicated messaging app could keep office workers inside Facebook’s ecosystem for hours a day.

“People want to seamlessly message from any device, and sometimes they just want a little more space to share and connect with the people they care about most,” Facebook said in a statement. Messenger could turn a profit by making it a more attractive place for businesses to buy ads. Facebook wants to add other business tools to its messaging apps as well, making it a primary channel for businesses’ marketing and customer service efforts.

The desktop version of Messenger will include audio calls, group video calls, and other features that are familiar from the mobile version. It’s likely based on Messenger.com, a web-based version of Facebook Messenger that has long been a faster alternative to using Messenger from Facebook’s web interface.The desktop apps are now in testing and will arrive globally “later this year,” the company said.