Features:



Simple interface

Pick a loved one and jump right in, with a simple interface that makes video calling as easy as one tap.



The highest quality video calling app*
Experience more reliable video calls with excellent video quality whether you’re on Wi-Fi or on-the-go.



For Android and iOS devices
Duo works on Android and iOS smartphones and tablets, so you can call all your close friends and family using just one app.



Knock Knock
See who’s calling before you pick up with a live video preview.



Video Messages
Friend can’t answer your call? No problem. Leave them a video message for them to call you right back. With a video message, you can still capture everything about that moment you wanted to share.



Voice Calls
Make voice-only calls to your friends when you can’t chat over video.



*Based on Signals Research Group technical study comparing video degradation time over 3G, LTE, and WiFi.