Google Duo’s audio calling feature is now available for all iOS and Android users of the app worldwide. The video-calling app first scored this more The feature was initially introduced in a handful of markets more than two weeks ago, but it’s now open to just anyone who wishes to make regular audio calls with other users of the app.
Google Duo and sister app Google Allo have been around for awhile now and Google is working hard to make they essential smartphone apps.
