Facebook updated its Messenger app Thursday with improvements to the app's voice calling feature.

The latest version of the app makes it easier for users to make calls by changing the location of the call button so it appears next to a contact's name within conversations. (Previously, the call button was behind a menu.)

Facebook Messenger's voice calling feature is similar to other standalone messaging apps such as Viber and WeChat. Users can make phone calls to friends for free, provided they have at least a wifi connection.

Facebook first added voice calling to its Messenger app in January 2013. Last week, the company added preset groups and message forwarding to the app.

The update comes weeks after photos that showed voice calling on WhatsApp— a feature rumored to be in the works for some time— leaked online.

Facebook Messenger is available to iOS , Android andWindows Phone users.

An earlier version of this article stated that voice calling was a new feature added in the most recent Facebook Messenger update. Voice calling was already part of Facebook Messenger and the most recent update improved the functionality and changed the location of the call button. We regret the error.