Duo:WalkieTalkie|Voice|Private

The blue bottle

In-app purchases

About this app

With Duo, you're always just one hold away from your favorite people. Press and hold to talk instantly, and they'll hear you live—no ringing, no waiting, no missed moments.

Whether you're catching up, sharing a funny story, or just saying hi, Duo makes conversations feel natural, spontaneous, and personal.

• HOLD TO TALK – Press and hold to speak instantly. Release to listen. It's that simple.

• PRIVATE CIRCLES – Create small circles with your closest friends and stay connected without the noise of large group chats.

• LIVE VOICE – Hear your friends in real time with low-latency voice, making every conversation feel like they're right beside you.

• PERSONALIZE – Customize your profile, accent color, audio output, and haptic feedback to make One One feel like yours.

• PRIVATE & SECURE – Your conversations are encrypted end-to-end, so only you and your friends can hear them.

Duo is built for the people you talk to the most. Less texting. Less calling. Just hold, talk, and stay connected. 💛