Headphones a little off? Noticing your audio isn't quite centred? Balance Lock will keep your audio centred and fix the annoying left/right drift bug.

It's the perfect utility for making sure when plugging and unplugging headphones that the audio stays centred.

It's simple to use and runs in the background un-intrusively.

If you like it, please consider leaving a nice review, it really helps!

What's New

Version 1.0.5

[Fixed] Issue where a window might have shown briefly when launching on login.
[Fixed] Issue where the on/off control would be cutoff on macOS 10.13.

Ratings and Reviews

4.3 out of 5
6 Ratings
6 Ratings
Damien McKenna ,

Simple fix for an OSX bug

While I really wish Apple would fix this bug in OSX, the fact this tiny little app is available is a great workaround.

fisherKing3k ,

a simple problem solver...

i uninstalled an audio app from my macbook pro, and, ever since then, when i switch audio output, the balance slider jumps far from center. this app fixes that; so, for me, it’s essential. definitely worthwhile, vs constantly bringing the slider back to center.

college professor ,

Simple, it just works, essential if you use your Mac for audio

My Macbook Pro connected to KEF powered speakers with built-in DAC is my secondary audio system. It sounds great streaming TIDAL hi-def or playing lossless tracks.

Except for one giant problem: the left-right balance occasionally gets out of whack. The first few times this happened, I thought there was a short in the cable going to one of the speakers, or that some of the plugs were loose. After fruitlessly trying different things, I went into macOS audio settings and saw that the balance was set to mostly left. I don’t know how this happened, but I reset it to center. A few days later, same thing happened again and it continues to happen—sometimes every couple weeks, other times every few hours.

I found this simple little utility and it completely solved the problem. It locks the balance to center. Whenever macOS tries to change the balance, this utility changes it back, and gives you a little notification that it did so—so you can see how often macOS is messing with the stereo balance settings. If you don’t like being interrupted by these notifications, it’s easy to turn them off in the app’s Preferences—where you can also set the app to launch every time you log into macOS if you wish.

I hate that macOS has this bug, but I’m grateful to the developer for offering a simple fix—and I think it’s worth paying for. I paid $5 and I think it’s worth that, for sure. At the moment I’m writing this, the price is $3, even better.

Highly recommended for anyone who frequently uses their Mac or Macbook as part of their audio system.


Tunabelly Software Inc.
3.5 MB
OS X 10.10 or later, 64-bit processor
Age Rating
Rated 4+
© 2018, Tunabelly Software Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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