Duo is a one-to-one video calling app for everyone - designed to be simple, reliable and fun so you never miss a moment.
Simple interface
Pick a loved one and jump right in, with a simple interface that brings video to the forefront.
Knock Knock
See the caller before you pick up with Duo's live preview feature.
High quality video
Experience faster and more reliable video calls whether you're on WiFi or on-the-go.
Cross-platform
Video call all your friends across Android and iOS with just one simple app.