Duo is a super cool video calling application with real-time preview of the caller. Duo launched with the messaging app Allo.
Duo comes with a feature called ‘Knock Knock’ which will give you preview of the caller before you pick up the call. Currently it’s not available on the Play Store but you can pre-register for the Duo. By doing so you will be notified when it’s available for download.
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178 Comments
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