AppFreeze

A tiny menu-bar utility that suspends the background apps quietly draining your battery. How much you save depends on what you leave running — and on a heavy app you'd forgotten about, freezing cut ~85% of its drain in our tests. Start free on the Mac App Store, or unlock automatic freezing with Pro.

Upgrade to Pro

Unlock automatic freezing — pick a subscription or a one-time license.

Subscription

Available on Setapp

Already a Setapp subscriber? Get AppFreeze Pro as part of your plan — nothing extra to pay.

Open in Setapp
One-time

Lifetime license

$19.99$9.99 onceLaunch price

Own it forever. Secure checkout, instant license and receipt by email.

Buy lifetime license

Lite vs Pro

The free Lite app shows you what’s running. Pro lets you act on it.

Feature LiteFree Pro · SetappSubscription Pro · LifetimeOne-time
Freeze & save battery
One-click freezing
Smart auto-freeze
True suspend, not quit (SIGSTOP — apps paused, not killed)
Live energy monitor (per-app CPU)
Per-app memory (RAM)
Control your apps
Quit background apps
Lock apps from freezing
Restore minimized windows from the Dock in one click
Sortable list (by CPU / memory / freeze state)
Customizable global shortcut
Everyday essentials
Click to switch / hide an app
Background apps monitor
Menu bar app — one click to open or close
Adjustable list size
Launch at Login
Trust & privacy
Safe by design
Private — no account, no tracking
Free updates (within current major version)
Availability & pricing
Distribution Mac App Store Setapp Direct download
Price FreeSetapp plan$9.99 once

Setapp and Lifetime unlock the same Pro features — pick whichever billing suits you.

What AppFreeze Pro does

Everything the Lite monitor shows you — plus the power to act on it.

See where your battery goes

Background apps quietly drain power. Hit Freeze All and watch the draw fall.

Or dial it in, app by app

Freeze just the apps you don't need right now — each one trims the draw a little further.

For illustration only. These two clips are a demonstration of the idea, not a recording of real measurements. The energy graph is a simulation — AppFreeze suspends apps to cut their CPU use; it does not measure wattage, and actual battery savings vary by app and workload. Activity Monitor is Apple’s own utility, shown here purely to illustrate the concept — it is not part of AppFreeze.

Want the real numbers? We measured the actual effect on real hardware — CPU power, battery drain, calibration. See the full methodology, charts & raw data →

Switch, restore & hide apps in a click

Click any app in the list to bring it forward — even a window you’d minimized to the Dock comes right back. Click it again to hide it: a quick way to jump between what’s running, right from the menu bar.

One-click freezing

Freeze every background app at once, or auto-freeze a remembered set. Suspended apps stop using the CPU instantly — no quitting, no losing your work.

Smart auto-freeze

Apps thaw the moment you switch to them and refreeze when you leave. You get the battery savings without ever thinking about it.

Live energy monitor

See real per-app CPU usage with a colour-coded Low/Medium/High indicator, so you know exactly which apps are draining your battery.

Sort the list your way

Click any column header — Name, %CPU or memory — to re-sort the list, ascending or descending. Surface your biggest battery hogs in one click.

Adjustable list size

Set how many apps the list shows — tap to grow it taller when you’re juggling everything, or keep it compact for just the essentials. The panel resizes to match, so it never takes more space than you need.

Quit background apps

Hover any app for a close button and shut it down right from the menu bar — with a quick confirm so you never lose unsaved work by accident.

Set it up your way

Record your own global freeze shortcut (or reset it to the default) and have AppFreeze ready in your menu bar the moment you log in — every setting tucked into one tidy panel.

Lock apps from freezing

Right-click any app to lock it — it stays unfrozen no matter what mode you switch to. A lock icon marks it at a glance; click the lock to unlock.

Safe by design

AppFreeze never suspends the app you’re using, Finder, or critical system processes — your Mac stays responsive at all times.

Under the hood

No memory cleaners, no magic — just how Unix already works.

Suspend, not quit

AppFreeze sends a SIGSTOP signal — the same primitive macOS uses internally. The app freezes in place and its CPU drops to zero. SIGCONT wakes it instantly, exactly where it left off. Nothing is killed, nothing is lost.

Why Pro lives outside the App Store

Sending signals to other processes is a privileged operation Apple’s sandbox doesn’t allow. So Lite is a read-only monitor on the App Store, and the actual freezing lives in Pro — distributed directly and on Setapp.

Always safe

The app you’re using, Finder, the Dock and core system processes are never frozen — by design. Your Mac stays responsive at all times.

Apps, not system processes

AppFreeze manages the applications you opened — the ones you can see and chose to run. It deliberately leaves invisible background and system processes alone: you never launched them, so it’s not its place to touch them.