ExtLume
5.8#15 in monitor control softwareFree planFree planWindows
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| Fact | ExtLume | Lunar |
|---|---|---|
| Privacy | ExtLume says it works offline with no telemetry, analytics, crash upload, update check, account, cloud synchronization, advertising identifier, or network request. | Lunar says it does not collect, store, or sell user identifiable or behavioral data, but it collects anonymous monitor data and uses Sentry for crash reporting. |
| Support | The maker directs users to GitHub Issues for general troubleshooting and recommends including app, Windows, laptop or GPU, monitor, connection path, control mode, and expected-versus-actual result in compatibility reports. | Users can contact the developer through a web form, and the contact page directs license delivery issues to the Discord server. |
ExtLume suits Windows 10 or 11 users who need brightness controls for external displays. It is most relevant when the monitor and its connection support DDC/CI or when software dimming can be safely isolated.
Lunar suits Mac users who want to adjust external monitor settings or automate changes with Shortcuts or the command line. Its modes offer options based on ambient light, location, and schedule.