Proton Movies Google Duo is the highest quality one-to-one video calling app*. It’s simple reliable and works on both iOS and Android phones.

Features:

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.

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

Cross-platform
Video call all your friends across Android and iOS with just one simple app.

Audio Calls
Make audio-only calls to your friends when you can’t have a video call.

*Based on Signals Research Group technical study comparing video degradation time over 3G LTE and WiFi.
**Data charges may apply. Check your carrier for details.