DisplayBuddy is the tidiest paid option for controlling monitor brightness on a Mac: one purchase, no subscription, a clean menu, and a clear promise. It also happens to be the app whose documentation states my founding problem better than I ever could, so this comparison writes itself.
What DisplayBuddy does well
Presets. One click puts every monitor into a saved scene: “Daytime,” “Movie,” “Late night.” For people whose day has two or three lighting states, that model fits like a glove. It’s polished, approachable, and $24.99 once.
It also does something the whole category should imitate: a public “will it work with my monitor?” checker built from real, anonymized user reports. Being able to look up your exact panel before paying is genuinely consumer-friendly, and in a category where monitors routinely misbehave, it’s the right kind of transparency.
Where this app differs
DisplayBuddy’s sync links your monitors to a host display, with an offset per follower, and its documentation is upfront that a given percentage won’t look the same on two different panels. That honesty is to their credit, and the point is correct: percentages aren’t light, and an offset that matches two panels at noon drifts apart by midnight, because different panels’ dials travel at different rates.
That drift is the entire reason this app exists. Instead of one offset per monitor, each display gets a line between two points you set by eye: one pass in dim light, one in bright. So the correction changes along the range the way your panels actually need it to. The full argument is in Matched, not equal.
The other difference is what the apps optimize for. DisplayBuddy optimizes for states: click, and the room is set. I optimize for continuity: the master (or the ambient light sensor, with auto-follow on) moves everything smoothly through every level in between, matched the whole way.
Choose accordingly
- Choose DisplayBuddy if your life runs on two or three lighting scenes and you want them one click away, with a slick UI and wide monitor support you can verify before buying.
- Choose Brightness Controller if you want the in-between covered too: screens that stay matched at every level, calibrated to your eye, for free.
At a glance
| DisplayBuddy | Brightness Controller | |
|---|---|---|
| Price | $24.99 one-time, no free tier | Free |
| Sync model | Host display + fixed offset per follower | Per-display calibration lines under one master |
| Organizing idea | Presets: one click per scene | Continuity: matched at every level |
| Adaptive | No | Ambient-sensor auto-follow |
| Compatibility transparency | Public monitor checker, best in category | Plain-text log + Displays tab show what your monitor did |
| Try before committing | No free tier | The whole app is free |
Facts as of mid-2026. Check displaybuddy.app for current details.