macOS App

WattBar

Real-time power monitoring for macOS. Track watts, battery percentage, system load, and detailed power metrics—all from your menu bar.

View on App Store Support

WattBar Settings interface showing launch at login, background polling intervals, display modes, and measurement precision options — WattBar Settings: Configure polling intervals, display modes (Power/Battery %/Icon), and measurement precision.

WattBar detailed power view showing battery status, system load, battery metrics including voltage, cycle count, and time remaining — Detailed View: Comprehensive power metrics including system load, battery health, voltage, cycle count, and estimated time remaining.

Key features

Power telemetry

Live power metrics

Display current power in watts or battery percentage directly in your menu bar. Choose between detailed metrics or icon-only mode.

Configurable polling

Adjust background polling intervals from 1-30 seconds. Balance update frequency with CPU and battery usage based on your needs.

Comprehensive details

Access system load, battery health, voltage, cycle count, capacity estimates, and time remaining—all in one detailed view.

Why WattBar?

Transparency

Optimize & understand

Identify power-hungry applications and processes. Make informed decisions about your computing habits. Optimize battery life on MacBooks or reduce energy costs on desktops.

Lightweight & efficient

Minimized impact on system resources. Menu bar placement keeps power data accessible without getting in your way. Simple, efficient, and powerful.

Privacy policy

Link

Your data stays private. WattBar monitors power metrics locally on your Mac—no data collection, no tracking, no accounts required.

Read privacy policy