MacMonMacMon

See exactly what'sDRAININGYour MacBook's Battery

Track power usage in real watts. See which apps consume the most energy, monitor battery health, and optimize your Mac's performance—all from your menu bar.

Download for Apple Silicon
macOS 14 or later requiredLatest release 0.1.0
Real Time
Power Usage
Native
Swift + SwiftUI
MacMon dashboard showing battery analytics, process attribution, and power distribution
Explore features

Built for people who care
about their hardware

Process-Level Power Attribution

See exactly how many watts each app consumes. Not vague estimates — real power draw attributed to every running process.

Real-Time Energy Charts

Live system power trends, per-app energy consumption, and battery level history with configurable time windows from 1 hour to 7 days.

Battery Health Dashboard

Cycle count, capacity degradation, temperature monitoring, voltage, current draw, and overall health percentage at a glance.

Hidden Workload Detection

Exposes Docker containers, Cloudflare tunnels, and launchd services that silently drain your battery in the background.

Menu Bar Integration

Lives in your menu bar with a customizable status icon showing battery level, percentage, and live wattage — always one click away.

Low Power Mode Toggle

Enable or disable macOS Low Power Mode instantly from the popover. No more digging through System Settings.

No Subscriptions, Pay Once Use Forever.

Buy once own forever, choose between a one year license and a lifetime license. Macmon's license lets you keep your old version forever no forced upgrades or subscriptions. We believe that you shouldn't need to subscribe to an app that runs locally on your device.

Free
$0

Free forever, for those who just want to see whats going on right now, no historical data.

  • Live power draw
  • Menu bar popover
  • Low Power Mode toggle
  • Basic battery info
  • Energy history & trends
  • One click kill
Download Free Trial
1 Year License
$15

Keep using your current version forever after the year ends.

Up to 2 Active Device

  • Live power draw
  • Menu bar popover
  • Low Power Mode toggle
  • Basic battery info
  • Energy history & trends
  • One click kill

14-day free trial

Download and Start Trial
Launch Sale
Lifetime
$40$99

All future updates and upgrades included. Pay once own forever.

Up to 3 Active Device

  • Live power draw
  • Menu bar popover
  • Low Power Mode toggle
  • Basic battery info
  • Energy history & trends
  • One click kill
  • Lifetime app updates

14-day free trial

Download and Unlock In-App
Latest release 0.1.0Read the changelogRSS

Questions & Answers

What happens after my 1 year license expires?
You keep using the version you had at expiry, forever. You won’t receive new updates unless you renew. LTD gets free updates for life!
Does MacMon need admin access?
Yep, on install the wizard will walk you through how to set it up! MacMon uses a lightweight privileged helper (via SMAppService) for accurate powermetrics data. You approve this once in System Settings so we can track every apps power draw down to the tiniest of details.
How does process-level attribution work?
MacMon combines macOS powermetrics data with resource usage sampling to attribute power draw to each process, including CPU, GPU, disk, and network components, no more random 'GPU Helper' items
Will it slow down my Mac?
No. MacMon is written in native swift uses less than 200 Mb of ram a tiny amount of CPU in the background. The sampling daemon is designed to be invisible in your workflow.
Can I use it on multiple Macs?
Each license supports activation on up to 2 Macs. You can deactivate and move your license at any time.
What is your refund policy?
No refund under any circumstances. Use the free trial to try it out yourself, once purchased its yours forever.
What is an LTD?
A life time deal, meaning you get to have the current app + all future updates for the rest of your life!
* - "< 1% BG CPU overhead"
Average usage Tested on an Macbook Pro M1 Max, slower laptops might require a bit more background CPU usage, additionaly the details view with all the charts is obviously heavier than the background CPU usage when its just monitoring your usage.

Stop guessing. Start knowing.

Download MacMon free and see exactly where your battery goes.

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Browse release notesSparkle appcast