Your devices.
One stage.
Turn the Macs, iPhones, iPads and Bluetooth speakers around you into one immersive sound stage. Vocals in front, instruments on each side, the room behind you.
Mac with Apple Silicon · macOS 14.2 or later · Free iPhone and iPad app
What it does
Everything you own, playing as one.
Surround sound from what you own.
Each device plays its own part of the song from where it sits, so the music surrounds you instead of coming from one box.
Give the music a mood.
One tap turns your room into a concert hall, a live room or a record player.
Same beat, everywhere.
Every device lined up to within a few milliseconds.
Fill the house too.
Every room at once, each with its own volume and EQ.
Plays anything your Mac plays.
Captured natively with Core Audio. No virtual cables, nothing to set up.
Stays on your Wi-Fi.
No account and no cloud.
Free for iPhone and iPad.
Your phone becomes a speaker.
01 · Stage
Surround sound, no new speakers.
Put each device on the room map. RoomSync splits any stereo song, live, into vocals, left and right instruments and ambience, then sends each part to the device that sits where it belongs. You sit in the middle of the music instead of in front of it. Drag the devices below and watch the parts move.
- Vocals
- Left
- Right
- Ambience
- Bass
02 · Scenes
Give the music a mood.
One tap changes how your whole stage sounds, with studio reverb and tape echo doing the work underneath. Put on headphones and try one. The track is generated in your browser, so nothing downloads.
03 · Sync
Why it sounds like one system.
A stage only works if every device hits the same beat. Bluetooth adds delay and Wi-Fi adds jitter, so RoomSync measures each device and lines them all up, down to a few milliseconds.
- Auto Sync, by ear
- Each room plays a quarter-second chirp. Your Mac's microphone times it and moves that room by the gap. You can still nudge any room by a few milliseconds.
- Any app, natively
- Captures your Mac's own sound with Core Audio. No BlackHole, no virtual cables.
- Speakers that come back
- Bluetooth speakers join as rooms and reconnect on their own when they drop.
- Finds your devices
- Other Macs and phones find this Mac on your network. Pick it and you're in.
RoomSync started as a pile of scripts on my own Mac: BlackHole, sox and ffmpeg, taped together so the music on my desk could reach the other rooms. It worked, most days. This is the version I always wanted, one app that just plays everywhere and then makes it sound bigger than the speakers should allow.
- 176automated checks, from unit tests to real end-to-end playback on a Mac
- 0accounts or cloud servers. Audio stays on your home network
- 2days of full Pro to try, starting the first time you use it
Multi-room
Fill the house too.
When the party spreads out, the music follows. Play in every room at once, in sync, and set each room's volume, timing and channels, or turn two Macs into a stereo pair. Each room gets its own seven-band EQ, one click away in the menu bar.
These controls work. Try them.
Setup
Playing in about two minutes.
-
1
Install on your Mac
Drag RoomSync to Applications. It sits in the menu bar and shares this Mac's sound.
-
2
Add your other devices
Open RoomSync Tower on an iPhone or iPad, or RoomSync on another Mac. Add a Bluetooth speaker from the menu.
-
3
Press play
Play anything on your Mac, turn on Stage and drag your devices to where they sit. Pick a Scene if you want one.
Compared
How it compares
You could buy a surround system, or send your sound to more speakers with AirPlay or Airfoil. RoomSync builds the surround stage from what you already own, and fills the other rooms too.
| Feature | RoomSync | New surround speakers | AirPlay | Airfoil |
|---|---|---|---|---|
| Uses devices you already own | Yes | No | AirPlay devices | Yes |
| Surround-style sound around you | Yes | Yes | No | No |
| Plays Mac audio in other rooms | Yes | No | Yes | Yes |
| iPhone and iPad as speakers | Yes | No | No | With an app |
| Any Bluetooth speaker | Yes | No | No | Yes |
| One-tap Scenes | Yes | No | No | No |
| Per-room EQ and stereo pairs | Yes | Some | No | Partly |
| Price | $15 a year | Hundreds of dollars | Built in | Paid |
Pricing
One plan. The whole house.
Start free. The first time you use a Pro feature, all of Pro opens up for 2 days. After that it goes back to Free and keeps working.
Free
$0
For one Mac and one more device.
- Your Mac plus 1 more device
- Sync, volume and basic EQ
- A 30-second preview of every Scene
- RoomSync Tower for iPhone and iPad
Pro
Launch price$15per year
The full stage, every Scene, every room. Cancel any time.
- Unlimited devices
- Stage: immersive sound from your devices
- Every Scene, Advanced knobs, per-device amounts
- Full seven-band EQ, channels and stereo pairs
- Only the Mac that shares its sound pays
What do I need?
A Mac with Apple Silicon · macOS 14.2 or later to share its sound, and Wi-Fi that your other devices share. Other Macs, iPhones, iPads and Bluetooth speakers become rooms.
Does it work with Intel Macs?
Not at launch. The Mac that shares its sound, and any Mac that joins as a room, needs Apple Silicon.
Is there a delay when I press play?
A short one while the rooms fill their buffers, then every room plays together. It's made for music and podcasts. For video, keep the sound playing on the Mac you're watching too, so picture and sound stay matched.
Does anything leave my home network?
No. Audio goes straight from your Mac to your devices over your own Wi-Fi. There is no account and no cloud.
How does the trial work?
The 2-day clock starts the first time you add a second extra device, or turn on Stage or a Scene. It doesn't start at install. When it ends, RoomSync keeps working on the Free plan.
Do my other devices need a licence?
No. RoomSync Tower and Macs that join as rooms are free. Only the Mac that shares its sound needs Pro.
Can I cancel?
Yes, any time. Pro stays on until the end of the year you paid for, then RoomSync goes back to the Free plan and keeps working.
Can I get a refund?
Yes. If it doesn't work for you, write to [email protected] within 30 days.
The speakers you need are already in your house.
Mac with Apple Silicon · macOS 14.2 or later