Senkron: Sync Music Party

Turn every phone in the room into one speaker system.

Senkron plays the same track on several devices at the same instant, over your own Wi-Fi network. One device hosts the party and picks a song; everyone else finds the party, downloads the track and starts playing together — down to the millisecond.

HOW IT WORKS
• Start a party on one phone and pick a track from your device
• Friends open Senkron and tap the party they see, or type the 6-character party code
• Everyone downloads the track first, then playback starts together
• Senkron keeps measuring and correcting drift while the music plays

WHY IT SOUNDS LIKE ONE SPEAKER
Phones drift apart while they play — different clocks, different audio hardware. Senkron builds a shared clock across the devices and keeps correcting: small gaps are closed silently by nudging playback speed, larger ones with a quick seek. You hear one sound, not an echo.

FEATURES
• Synchronized multi-device playback over local Wi-Fi
• Automatic party discovery, plus a 6-character code and manual IP entry for tricky networks
• Party chat and emoji reactions
• Per-device delay adjustment for Bluetooth speakers
• Background playback with notification controls — lock the screen, the music stays in sync
• The host can remove any listener from the party
• Available in English, Turkish, Spanish, Hindi and Chinese

PRIVACY
No account. No server. No analytics. No ads. The track, the chat and the timing data travel directly between devices on your own Wi-Fi network, and nothing is kept once the party ends.

WHAT YOU NEED
All devices on the same Wi-Fi network, and a music file on the host's phone.