Support
How can we help?
Lumi is currently a beta. Contact support@lumiformac.com for help; support routing still needs an end-to-end delivery check before public launch.
Beta download and setup
The free beta is signed with Developer ID and notarized by Apple. Half-Screen Mode enhances the left half and provides an approximate comparison on the right, not a calibrated SDR or nit comparison. A license enables the full display; live purchases are not open yet.
Download the beta, unzip it, move Lumi.app to Applications, then open it and use the sun in the menu bar. Lumi starts off. Check the model and macOS test scope before enabling it.
Current compatibility
Testing covers one 14-inch M2 Pro MacBook Pro on macOS 27.0.1. Other built-in XDR panels, including OLED, remain unverified. Lumi does not control external displays.
Brightness and restoration
Nit values are estimated targets. Output can vary with content, power, temperature and display settings. Turning Lumi off from the extended range returns to maximum system brightness; Restore and normal Quit return to the previous brightness.
Force Quit or a crash cannot run normal restoration. Recovery behavior needs further validation. Avoid using the beta for color-critical work or alongside another app that changes display calibration.
Report an issue
Include your Mac model, macOS version and what happened. Lumi Settings → Display offers Export diagnostics. Review that file before sharing it.
License help
Live purchases are not open yet. Keep any test license key shown after a test checkout. Email delivery is shown separately and is not assumed to have succeeded.
Multiple Macs
Planned licenses are €5 for 2 Macs, €20 for 5 and €50 for 10, with no subscription. Contact us about a larger deployment after the licensed beta is validated.
Press information
Contact us for the current app icon, screenshots and beta validation notes. No customer or press endorsement is claimed on this site.