Slap your MacBook. The harder you hit it, the louder it screams.
Not sure which chip you have?Open the Apple menu in the top-left corner of your screen, click About This Mac, and read the line that says Chip. It takes five seconds and saves you a refund.
How it works
Grab the DMG, drag ZasMac into Applications. No account, no sign-up, no email.
macOS asks you to approve it once, at install, so ZasMac can read the motion sensor. Once. Never again.
That’s the whole product. Give it a smack and see what comes out.
What you get
There is no “pro tier”. Nothing is held back to sell you later. You pay once and you have all of it.
A nervous tap gets a yelp. A proper open-handed slap gets a scream that will make the person next to you jump. The accelerometer reads how hard you hit, and the sound scales with it — that is the whole idea, and it is the part that makes the video.
Pick what it screams. Swap the whole voice of your Mac whenever the joke gets old.
No Dock icon. No window in your way. It sits up top, waits, and says nothing until you hit something.
It keeps score. You will check it more often than you would like to admit.
Two sliders. Turn it down until typing never sets it off, or turn it up until breathing does.
Pricing
$4once
$4, paid once, inside the app while you set it up — and that is the last time money is ever mentioned. No subscription, no monthly anything, no upsells. Payment is handled by Lemon Squeezy. This page never asks for your card.
Download for MacQuestions you are about to ask
No. ZasMac reads the motion sensor built into recent MacBooks, and that sensor is either absent or unreadable on Intel Macs and on the plain M1. Desktop Macs — iMac, Mac mini, Mac Studio, Mac Pro — have no accelerometer at all, which makes sense: an iMac was never going to fall off anything.
You need a MacBook with M1 Pro or M1 Max, or any M2, M3 or M4.
No. Typing, trackpad taps and closing the lid do not look like a slap to the sensor, and they get filtered out. If your particular setup still sets it off — a wobbly desk, an enthusiastic typist — turn the sensitivity down until it stops.
There is also a cooldown, so one slap is one scream, not twelve.
No. The helper listens to a sensor your Mac is already running, and does nothing else — no network, no graphics, no busy loop burning cycles while it waits. Realistically, the sound it plays costs more battery than the listening ever will.
Installing ZasMac voids nothing. It is software: it reads a sensor and plays a sound. It does not touch your hardware, modify your firmware, or leave anything behind that Apple would object to.
You, on the other hand, are entirely capable of breaking your own laptop if you commit hard enough — and no software licence covers that. Your MacBook cost considerably more than this joke did. Slap it like you are high-fiving a friend, not like you are tenderising a steak.
None. Zero. There is nothing to collect, because ZasMac never sends anything anywhere.
It never records audio — it only plays it. It never touches your camera. There is no account, no login, no analytics and no telemetry. Not even a page-view counter on this site. The only moment anything leaves your Mac is the one-time payment, which Lemon Squeezy handles and which we never see the card for.
The long version is on the privacy page, and it is short.
Yes. 14 days, no questions asked. It does not work on your Mac, the joke wore off, you regret everything — it does not matter. Email us within 14 days of buying and you get your $4 back.
Lemon Squeezy is the merchant of record — they took the payment and they issued your invoice — so the money comes back through them, to the card you paid with. Write from the email you bought with and it is faster.
The compatibility box at the top of this page exists so that you never need this answer in the first place. Please read it.
Your licence lives with the email you paid with, not with your Mac. Wiping the machine changes nothing.
Go to the Lemon Squeezy customer portal, type in that email, and they will send you a link to your order with your key in it. Reinstall ZasMac, paste the key, carry on slapping.