Do I need a subscription?

No. Buy once and you own your version forever. A lifetime license includes all future updates.

What happens after I buy?

You get a signed license code immediately. Enter it in the app and you're set. Download the app and your license works right away.

Does it work on my Mac?

We support Apple silicon Macs M1+ and macOS 14+. If you have any issues running the app, contact support@nativelab.dev and we will promptly issue a refund.

Can I get a refund for change of mind?

We do not offer change-of-mind refunds for digital downloads. If the app does not run on your supported device, contact support@nativelab.dev and we will promptly issue a refund.

The MacBook battery monitor for live app drainSee why

Something is draining your batteryNow you can see exactly what

MacBookBatteryMonitor shows live per-app power draw, whole-system usage, and battery health from your menu bar measured in real watts, not vague scores.

Set app power limits, offload to E cores for low priority apps, charge limits and more. Best of all no subscription, ever.

Download NowApple Silicon · macOS 14+Explore features

MacBookBatteryMonitor open on a Mac desktop, showing battery power, top apps, and menu bar stats.

A CPU power limit applied to an app from the Top Processes list, with its draw dropping in real time.

Control

Control every app at a glance

Accurate per app power tracking, one click kill, CPU usage limits, E core offload. Every tool you need to make the most of your battery life right in your menu bar.

Sailing Mode drawing a plugged-in MacBook battery down to a chosen charge limit, then holding it there.

Charge protection

Set power limits and extend your battery health

Batteries wear down much faster when held at full charge for long periods of time. Using the power limit and sailing features you can prevent your macbook from overcharging and extend your battery health.

Sail down to your battery limit

Target 80%

Plugged inHolds at target

See what your battery is doing

Every battery detail. Every running process.

Check battery health and see which apps are drawing the most power, all in one place.

The MacBookBatteryMonitor Details view showing battery health and technical battery statistics.

All the stats you need

See battery health, capacity, cycle count, temperature, and key electrical details in one place. No important metric hidden.

The MacBookBatteryMonitor Details view showing the full process list and app power usage.

See all your apps power draw at once

See which app uses the most power at any time so you know what to close, quit, or test first.

V1.0 launch offer: save 50% on either license.

No subscriptions. Pay once. Use forever.

Pay once and own it forever. Every license includes lifetime updates with no subscription.

1 Mac

Single License

One license for one Mac. Pay once, keep it forever.

1 Seats
Live power draw per app
Energy history & charts
One-click app kill
Charge limits & Sailing Mode
Per-app CPU usage limits
Efficiency-core app offload
Battery health insights
All future updates
Pay once, own forever

Buy Now

3 Macs

Multi License

Three licenses for three Macs. Same lifetime updates, one checkout.

3 Seats
Live power draw per app
Energy history & charts
One-click app kill
Charge limits & Sailing Mode
Per-app CPU usage limits
Efficiency-core app offload
Battery health insights
All future updates
Pay once, own forever

Buy Now

Everything included

The complete MacBook battery toolkit.

Compare MacBookBatteryMonitor with the battery tools built into macOS. Every license includes every feature, lifetime updates, and no subscription.

Feature	What it gives you	MacBookBatteryMonitor	macOS
Diagnose battery drain
Live per-app power draw	Process-level watts and watt-hours in real time.	✓Included	~Relative score
System total power draw	See your Mac’s complete live draw measured in watts.	✓Included	—No live watts
Component power breakdown	Separate CPU, GPU, memory, display, and USB usage.	✓Included	—Not available
Hidden workload detection	Surface drain from Docker, cloudflared, launchd, and subprocesses.	✓Included	~Manual process view
Understand battery health
Battery health and condition	Compare current capacity with the battery’s original design capacity.	✓Included	✓Built in
Cycle count	See current cycles alongside the battery’s design cycle limit.	✓Included	✓Built in
Battery temperature	Live temperature in Celsius or Fahrenheit with a status label.	✓Included	—Not available
Control charging
Charge limit	Set a target from 50% to 100% through the Mac’s SMC.	✓Included	~80–100% · 26.4+
Sailing Mode	Draw down to your target while the Mac remains plugged in.	✓Included	—Not available
Low Power Mode automation	Turn Low Power Mode on automatically below your chosen threshold.	✓Included	~Manual modes
Act on demanding apps
Per-app CPU throttle	Cap an app’s CPU usage from 10% to 100%.	✓Included	—Not available
Efficiency-core offload	Move a selected app to efficiency cores with a per-app toggle.	✓Included	—Not available
One-click quit	Stop runaway apps and their subprocesses from the menu bar.	✓Included	~Activity Monitor
Built for daily use
Native menu-bar app	Keep live battery information and controls one click away.	✓Included	✓Battery menu
Energy history	Review whole-system and per-app energy use for up to 30 days.	✓Included	~Up to 10 days
One-time purchase	No subscription, with lifetime updates included.	✓Included	✓Included with Mac

FAQ

Short answers to the big questions.