Watt The Plug app icon

Real charging wattage,
right in your menu bar.

Check cables, chargers, and power setups instantly. Private, tiny, and offline.

Download on the Mac App Store See how it works ›
Requires macOS 13+ • One-time purchase • No subscription
Watt The Plug shown in the MacBook menu bar
Everything in one glance

A small app that answers
a simple question.

USB-C charging is convenient, but it isn't always obvious how much power your MacBook is actually getting. Cables, chargers, adapters, and battery state all affect the result.

Live wattage
⚡ 94 W

See power as it flows.

Real-time charging power, updated live in your menu bar. No window. No clicks.

Compatibility
USB-C
MagSafe

USB-C and MagSafe.

Works with the full range of modern MacBook charging.

Auto-detect plug

Knows the moment you connect or unplug.

Starts at login

Quietly there from the moment your MacBook wakes.

Truly offline

No tracking. No network. Ever.

Footprint

Tiny by design.

Built so light you'll forget it's running.

~20MBMemory
~0%CPU idle
0Network calls
$/moPay once

One-time purchase. No subscription.

Watt The Plug menu showing 94 W and Start at login toggle
How people use it

Zero taps. One answer.

Live wattage sits right in your menu bar — no app to open, no window to find. Click it once and you'll see exactly what your MacBook is pulling, and whether your gear is doing its job.

1
Confirm full power Make sure your charger actually delivers what it promises.
2
Compare cables & adapters Spot the underperformers in your collection in seconds.
3
Catch problems early Realise an underpowered setup before it costs you a deadline.
“

What does it cost you to run out of power at the wrong moment, or realise too late that your setup was underpowered? Watt The Plug helps you catch that early.

Know your watts.
Trust your charge.

Download Watt The Plug from the Mac App Store and see what your charger is really doing.

Download on the Mac App Store