Google Duo is the highest quality video calling app*. Itâs simple, reliable, and works across Android and iOS phones and tablets, smart devices, and on the web. Features: Make calls between Android and iOS Whether youâre on your phone, tablet, or on the web, you can stay in touch with Duo. Group call with up to 12 people Bring together all the people who matter most, even when you're apart, with group calling. Duo now supports 12 people in group video calls. Send video and voice messages, photos, and more Short on time or your friends canât pick up? Leave a personalized video message with fun effects, or share voice messages, photos, notes, and emojis. Low Light Mode Duo lets you make video calls even in poor lighting conditions. Voice calling Make voice-only calls to your friends when you canât chat over video. *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. ***Specific feature availability may vary based on device specifications.