While Google’s Android platform may be the biggest rival to iOS, the search giant is happy to support users who choose Apple’s device. In fact, thanks to apps like YouTube and Google Maps, Google is the App Store’s top publisher, beating Apple on its own turf.

Facebook has begun rolling out its free voice calling feature to Facebook Messenger users in the United Kingdom, just days after the service landed in the U.K. on the iPhone. You won’t need to update the Facebook Messenger app; the feature will be added quietly in the background.

Today, Facebook updated its Messenger app for both iOS and Android, adding a voice messaging capability to the app on both platforms.

There have also been reports that Facebook has been rolling out a pilot VOIP feature to the Messenger app, which will let users call other Facebook Messenger friends for free, or at least without incurring carrier voice minute debits.

The VOIP option is not available for all users, as the iOS app is the only one with even a mention of the feature in the app description. TechCrunch reported that the pilot program is only available in Canada for now, as well.

Facebook is changing the policy of requiring a Facebook account for Facebook Messenger and will now allow users to sign up using only their name and phone number. This change is an attempt to bolster Messenger usage by attracting users who want an SMS alternative but aren’t interested in joining a social network to get it.