Free · open source · Android 10+
Listen to music together with up to seven people — on the same couch or in different cities — in sync to a few milliseconds. Anyone can pause, skip or add a song.
No account · no server of ours · works offline on the same Wi-Fi
Why Duet
Start a session, read out six words, and everyone hears the same note at the same time.
Every phone checks itself five times a second and eases its speed to stay together — no jumps, no echo.
Phones connect directly over the internet. On the same Wi-Fi it finds sessions by itself and needs no internet at all.
Play a YouTube video or a whole playlist together, kept in step on every phone.
Everyone adds songs from their own phone and votes the next one up.
Synced lyrics scroll along with the song for everyone.
Floating emoji over the record, a little chat, and a heartbeat you can send.
See it
Phones run at slightly different speeds and networks add delay. Duet measures the gap continuously and nudges each player back into line without you ever hearing a jump.
Press the button to knock them apart
Under the hood
Duet gives you six easy words and a QR code. Read them out on a call, or send the link.
Phones find each other directly — over the internet, or on the same Wi-Fi with no internet at all.
The host sends each song ahead of time, and every phone plays it at the same moment and stays there.
Privacy
There’s no Duet account and no Duet server. Songs travel directly between your phones, encrypted, and are deleted when the session ends.
Download Duet, send six words, and listen side by side — wherever you both are.
Android 10 or newer · free · no ads · Apache 2.0