Support
A real person reads every message. If something is wrong, or you are not sure whether Tunestack does what you need, write and ask — there is no ticket system and no bot in front of me.
Email supportsupport@tunestack.inBefore you write
Tunestack can tell you what it has been doing. Open Settings ▸ About ▸ Save Support Report… and it writes a short text file listing your audio devices, your settings, and the reason it last did — or deliberately did not — switch.
Attaching that file answers most of my first questions in one go. It contains no personal information beyond the names your devices report to macOS, and nothing is sent anywhere unless you attach it yourself.
It also helps to know your macOS version ( ▸ About This Mac) and which devices were connected when the problem happened.
I can’t see the menu bar icon
Tunestack has no Dock icon and no window — the menu bar is the whole app, so if the icon is missing it looks like nothing launched.
macOS hides status items when the menu bar runs out of room, which happens easily on a laptop with a notch. Check System Settings ▸ Control Centre ▸ Menu Bar, and try quitting another menu bar app to free up space.
It stopped switching on its own
Two things deliberately stop automatic switching, and both are visible in the menu.
You picked a device by hand. Tunestack then stands down for a while rather than overruling you — thirty minutes by default. Click Resume automatic switching to end that early, or change the duration in Settings ▸ General.
It switched too often. More than three switches in ten seconds and it pauses completely, showing a slashed speaker in the menu bar. That usually means two devices are connecting and disconnecting in a loop. Click Resume automatic switching once the hardware settles.
It switched to the wrong device
Open Settings ▸ Output and check the order, and that the device you wanted is ticked — an unticked entry is skipped entirely.
A device shown greyed out with Not connected is remembered but absent, so Tunestack moves to the next one down. That is working as intended.
If the order looks right and it still chose differently, send the support report. It records the reason for the decision, which is usually enough to explain it.
Another app keeps stealing the device
This is a real limit rather than a bug. An application that opens its own audio session and demands a specific device gets it, and no third-party app can prevent that — Tunestack sits above that layer.
What it can do is notice and switch back. Turn on Take the device back if another app changes it in Settings ▸ General. Leaving it off avoids a tug-of-war, which is why it is not on by default.
Launch at login isn’t working
Tunestack registers itself with macOS rather than storing a preference of its own, so the switch always shows the true state.
If macOS refuses the registration, the setting shows a warning and an Open Login Items… button. You can also add Tunestack by hand under System Settings ▸ General ▸ Login Items & Extensions.
Audio is glitching, clicking or dropping out
If you are on macOS 26.0, update to 26.1 or later. Apple shipped several genuine audio bugs in 26.0 — capture failing between devices running at different sample rates, and Safari skipping at 44.1 kHz — all fixed in 26.1.
If it persists after updating, tell me which apps were playing and what your output device is, and attach the support report.
Does it work with AirPlay?
Honestly, I don’t know yet. AirPlay outputs may not appear to macOS the same way wired and Bluetooth devices do, and I have not verified it — so Tunestack does not claim to support them. If AirPlay is the only reason you would buy it, wait until that changes.
Refunds and your licence
Tunestack is $9, paid once, for every Mac you own. If it does not do what the site says it does, email within 14 days of buying and you will get a refund — no justification needed. UK and EU customers also have the statutory right of withdrawal described in the Terms of Sale.
Lost your licence key? Write from the address you bought with and I will resend it.
What Tunestack needs
macOS 26.1 or later · Apple silicon. The app is 2.7 MB on disk, currently version 1.0.
Device switching requires no permissions at all — no prompt, no privacy pane. The only feature that asks for one is per-app audio, and macOS prompts you when you turn it on.
Contact
Email support@tunestack.in. I aim to reply within two working days, and usually sooner. Tunestack is made and supported by Suraj Kumar.
Bug reports, feature requests and “does it do X?” questions are all welcome — especially before you buy.