Drainspot is a free battery monitor for MacBook Air and Pro. It records charge and power use every minute, then helps you spot the apps, sleep interruptions and battery wear behind a shorter day.
The widget and the menu bar keep the charge, the draw and last night’s verdict in view. Both are free.
Each page answers one question.
The watts, how long they last, and the apps behind them: live on Now, ranked for the whole day on Today.
Each morning it compares the night with your Mac’s usual pace and, when it cost more, names the likely cause.
A calendar coloured by how fast each day drained, and the whole story of any day.
Health and cycles as macOS reports them, the habits that wear a battery faster, and how long it may last (always marked as an estimate).
Drainspot puts macOS battery readings in context, so you can separate a busy afternoon from a battery that needs attention.
Energy Impact ranks apps while they run. Drainspot keeps a daily view, including system processes, so a short spike does not stand in for the whole day.
Which apps use the most batteryThe Sleep report compares charge lost overnight with this Mac’s earlier nights. Wake logs and app activity can point to a likely cause; a single wake is not proof by itself.
Check overnight drainMaximum capacity, condition and cycle count come from macOS. Drainspot shows their trend over time; remaining battery life and future wear are estimates.
Check battery health
Drainspot records every minute of all three.
Every Mac starts with 7 days of full Pro, no card. Then pay monthly, or once for life. Your history is kept either way.
Know if something’s wrong.
No account. No card.
Know why, and fix it.
Try it free for 7 days on every Mac. No card.
| Free | Pro | |
|---|---|---|
| Charge, health, cycles, charger | Included | Included |
| Menu bar window | Charge, state, time left | + battery details and top 5 apps |
| Widgets | Small and medium | Small and medium |
| Night report | The verdict | + the cause and who kept the Mac awake |
| Apps that drain the battery | Live, right now | Today, every day, details for each app |
| History | Last 7 days | All of it, weekly and monthly reports |
| Heat | Right now | History and what heated the Mac |
| Export CSV and PDF | Not included | Included |
No account and no analytics. Everything it records stays in a folder on your Mac.
Usually an app working in the background, the screen, a task macOS runs after an update, or heat. Activity Monitor’s Energy tab shows the app right now; Drainspot keeps that record for every day and compares it with what’s normal for your Mac. How to find it.
Repeated wakes or an app preventing sleep can contribute to overnight drain. Compare several nights on the same Mac; Drainspot points to a likely cause when the sleep and wake data supports one. What to check.
System Settings › Battery › Battery Health shows the condition and maximum capacity; System Information › Power shows the cycle count. Drainspot tracks both over time. Step by step.
Hardly. With the window closed, recording used about 2% of one CPU core in our tests, and Drainspot lists itself among the apps so you can always see what it costs.
MacBook Air and MacBook Pro on macOS 14 or later. Apple silicon Macs get everything; Intel Macs report fewer details, so they get the basics. Desktop Macs have no battery.
No, it only reads. macOS has its own charge limit in System Settings › Battery; Drainspot shows it and takes you there.
The Pro parts stay where they are with an “Unlock with Pro” note, and nothing is deleted. Recording keeps running in full, so the day you buy, all your history appears.
Yes. A license covers two Macs. Deactivate it in Settings › Drainspot Pro on the old Mac, then activate it on the new one.
Yes. Drainspot checks your key about once a week and keeps Pro working for 30 days after the last successful check.
Yes, within 14 days; see the refund policy. Payments are handled by Creem, our reseller.
Free, with 7 days of Pro. Your history starts from macOS’s own power log, so day one already has a past.