Google Duo is a video chat mobile app developed by Google, available on the Android and iOS operating systems.

Duo is based on phone numbers, allowing users to call someone from their contact list.

The app automatically switches between Wi-Fi and cellular networks.

How do I use Google duo on Android?

Set up Google Duo

• Step 1: Install Duo. Duo is available on Android phones and tablets.
• Step 2: Connect your Google Account (optional) To connect your Google Account, tap Agree.
• Step 3: Verify your phone number. On your Android device, enter your phone number and make sure it’s correct.

Is it free to use Google duo?

Google is going after FaceTime and WhatsApp and other video-calling apps with its own solution called Duo. Duo is free to use and enables 1-to-1 video and voice calls. It’s easy to use, too, because the app’s interface is ridiculously simple.