What are the best MacBook anti-theft apps?

Working from a coffee shop or library and need to step away from your MacBook for a minute? What actually protects it while you are ordering another coffee, taking a call, or walking to the printer?

That brief moment is the focus of this guide. FileVault protects your data and Find My helps after a Mac goes missing, but neither is designed to watch the laptop on your table, sound an alarm when someone interferes with it, or alert you while you are still nearby. We compared the MacBook anti-theft apps built for that gap.

What a MacBook anti-theft app can actually do

A MacBook anti-theft app is designed for the moment before a laptop disappears. It watches for signs that someone may be interfering with the Mac, sounds an alarm, and alerts you while you may still be close enough to respond.

Some apps watch one specific action, such as unplugging the charger or closing the lid. Others also detect movement, loss of connection, or activity around the bag and other belongings beside the computer.

There are two useful categories:

• Prevention and interruption tools react while the MacBook is still on the table. They include movement alarms, unplug alerts, lid alerts, phone notifications, cameras, and screen locks.
• Recovery tools help after the Mac is missing. They include location history, Lost Mode, remote locking, and remote erasure.

The apps reviewed here mainly belong to the first category. Find My belongs to the second. A sensible setup uses both, with FileVault protecting the data if the Mac is taken.

We explain how each app works first. A feature table and pricing summary appear after the individual reviews, so you can scan the final differences in one place.

Stealward: the broadest protection system, with core protection free

Stealward is the best overall MacBook anti-theft app we found for people who work in public spaces. Its Free plan detects movement on supported Apple silicon MacBooks, watches for power changes, detects when the watching device goes offline, sounds a local alarm, and sends an alert to the Apple device you carry.

The camera system works differently from an event attachment. A camera session records continuously from the moment protection starts, and encrypted video uploads to the cloud throughout the session. You can open a private, low-latency live view at any time.

Alerts do not depend on the recording upload. An alert does not wait for a video file to finish uploading. If the connection becomes unstable or is cut, footage already stored in the cloud remains available, while offline detection alerts your other device.

AI Watchdog can also describe a possible threat in plain language, such as someone reaching toward your backpack. This extends protection beyond the Mac itself to the belongings around it.

The alarm, movement, power, offline detection, and remote notification features are free. Paid plans add the camera features and AI Watchdog. The full Stealward feature and plan list shows what is included at each level.

Stealward is also the only product in this comparison that lets a Mac, iPad, or iPhone act as the device left behind.

WatchDog: movement detection and iPhone alerts

WatchDog detects movement, sounds a local alarm, alerts a paired iPhone, and locks the Mac while protection is active. Its local alarm continues without Wi-Fi, but it does not provide offline detection, a camera, recording, live view, or AI analysis. WatchDog costs $24.99 per year. Stealward Free already includes movement detection, the local alarm, and iPhone alerts, then adds power and offline detection.

Rex: automatic protection

Rex can recognize a normal pack-up sequence and automatically control protection. It triggers when the lid closes or power is removed while the screen is locked, but it does not detect movement. Its listing shows a $14.99 in-app purchase without stating the billing period. Stealward Free already includes power alerts, a local alarm, and remote notifications, then adds movement and offline detection.

Unplug Alarm: charger and lid triggers

Unplug Alarm reacts when the charger is removed or the lid is closed. It can sound an alarm, lock the Mac, take a photo, and notify its mobile client, but it does not detect movement or the Mac going offline. It costs $11.99 per year or $19.99 for lifetime access. Stealward Free already includes the power alert, local alarm, and remote notification, plus movement and offline detection.

Clyde: a basic lid alarm

Clyde sounds an alarm when someone closes the MacBook lid. It does not react if someone lifts the open MacBook without closing it. The local alarm is free, but iPhone and Apple Watch calls require the paid version, whose price is not shown publicly. Stealward Free includes alerts on another device, plus movement, power, and offline detection.

Shepherd: event video through Telegram

Shepherd reacts when power is disconnected or the display is closed. It sounds an alarm and sends a video through Telegram after the event. It does not provide continuous cloud recording before the event, a live view, movement detection, offline detection, or AI analysis. At $1.99 per week, a full year costs about $103.48. Stealward Free already includes power alerts, a local alarm, and instant notifications.

Armed: a one-time Mac App Store option

Armed says it detects tampering, captures an image, and plays a siren. Its listing does not define the tampering triggers or remote-alert mechanism clearly enough for a precise comparison. It is a $14.99 one-time purchase. Stealward Free provides defined movement and power triggers, a local alarm, and alerts on another device.

MacBook anti-theft app comparison table

App	Main trigger	Remote alert	Camera or video	Live view	AI scene analysis
Stealward	Movement, power, offline detection, and AI-observed events	Apple devices	Continuous end-to-end encrypted cloud recording	Yes. Low latency and end-to-end encrypted.	Yes. Watches belongings around the device.
WatchDog	Movement	iPhone	No	No	No
Rex	Lid closed or power removed while locked. No movement detection.	iOS, Android, Telegram, or webhook	No	No	No
Unplug Alarm	Power removed or lid closed	Mobile client	Event photo	No	No
Clyde	Lid closed	iPhone and Apple Watch call	No	No	No
Shepherd	Power or display/lid event	Telegram	Event video	No	No
Armed	“Tampering,” not defined more precisely in its listing	Not clearly documented	Event image	No	No

Pricing

App	Public US price reviewed
Stealward	Free core protection; Lite $29.99/year; Pro $39.99/year
WatchDog	$24.99/year; regional currency may vary
Shepherd	$1.99/week (about $103.48/year); $44.99 lifetime
Unplug Alarm	$11.99/year; $19.99 lifetime
Rex	$14.99 in-app purchase; billing period not stated in its listing
Armed	$14.99 one-time
Clyde	Free local alarm; paid price not publicly shown

Prices are US prices reviewed in August 2026. Where a product only publishes a weekly or monthly price, the yearly figure is the cost of staying subscribed at that rate for a full year, not a separate annual plan.

How Stealward changes the rules of MacBook anti-theft apps

Many competitors turn straightforward local detection, basic alarms, and remote notifications into costly paid features. Stealward does not.

We believe more people should be able to protect their devices and the belongings around them. Basic security should not sit behind an expensive paywall. That is why Stealward Free includes movement detection, power alerts, offline detection, a loud local alarm, and instant notifications on another Apple device. It is a complete anti-theft option, not a limited preview.

This changes what users have to compare. Core protection is already free. You only need to decide whether you also want live video, continuous encrypted cloud recording, and AI Watchdog. Stealward’s paid plans extend a complete system instead of charging users to finish it.

That makes Stealward the best overall choice in this comparison and the most complete free option we found.

Stealward is not limited to the MacBook either. The same app can protect an iPad or iPhone, giving you one protection system for the Apple devices you use every day.

Keep Find My enabled as well. It handles location and recovery after a Mac is missing, while Stealward covers the moment an attempted theft begins. No app makes a laptop theft-proof, but the right one can turn a quiet grab into an immediate alert while you are still close enough to respond.

See how Stealward protects your devices and belongings.

Disclosure and methodology: this guide is published by Stealward. We make one of the apps being compared. We reviewed official product pages, App Store listings, and published documentation in August 2026. Features and prices change, so check each product’s current listing before buying.