Touch ID app lock for macOS

Hand over your Mac.
Not your privacy.

Shoo! locks any app on your Mac behind Touch ID. One tap to protect it, one fingerprint to get back in, nothing to see in between.

Full features during the trial. $17.99 once if you keep it. No subscription, no account.

"I don't want her poking around in the Notes app. I just handed her my Mac for a second to show her something." A comment we see over and over in Mac forums and app reviews

Nothing to see, nothing to click through

iPhone got app locking with iOS 18. Your Mac never did. Until now.

01

Pick an app

Messages, Mail, your banking app. Anything.

02

Someone opens it

The app never actually appears on screen.

03

Touch ID prompt

Or Apple Watch, or your own backup password.

04

In, or not

Confirmed, it opens normally. Cancelled, it just stays closed.

Most app lockers just cover the screen

That's the whole problem. If the app is already open behind an overlay, there's always a way to peek, or the overlay just doesn't show up when it should.

Typical app lockers

  • Content flashes on screen before the lock appears
  • Only checks once, at launch. Switch back and it's already unlocked
  • Needs Accessibility or Screen Recording permissions
  • Your regular Mac password can unlock it

Shoo!

  • The app never renders until you unlock it
  • Re-checks every time you switch back to it
  • Zero system permissions requested, ever
  • Your Mac account password never works here

No subscription. No tracking. No catch.

One-time purchase

Pay once, own it forever. No recurring billing.

Fully offline

License checked on your device. No phone-home, ever.

Zero telemetry

No analytics, no ads, no data collection.

Built by one developer

Independent macOS app, not a venture-backed data play.

Try it free. Pay only if you keep it.

Every download starts with a 7-day trial, full features unlocked, no card required. The license below just removes the countdown.

$17.99 once, after your trial
7-day free trial first. Full features. No card required to start.
  • Lock unlimited apps
  • Touch ID, Apple Watch, or backup password
  • Works on any Mac running macOS 14 Sonoma or later
  • Free updates, forever

Good questions

Does it need an internet connection?

No. Touch ID checks and license validation both happen entirely on your Mac, offline.

What if I forget my backup password?

Shoo! lets you set an optional hint, shown right next to the password field, without ever revealing the password itself.

Which Macs does it support?

Any Mac running macOS 14 Sonoma or later. Apple Silicon or Intel, with or without a physical Touch ID sensor (an Apple Watch works too).

Can someone just force-quit Shoo! to get around it?

Shoo! restarts itself automatically and re-locks anything you've protected as soon as it's back. Removing it entirely requires confirming your identity first.

Is this good for a shared family Mac?

Yes. It works whether you want to keep your own apps private on a shared computer, or lock things down for other people using it, all without setting up separate user accounts.