The short answer
- Use macOS Night Shift if you want Apple's built-in warmth slider and custom or sunset schedule. Apple source
- Use Windows Night light for Microsoft's built-in strength and scheduling controls. Microsoft source
- Consider f.lux if its current publisher-documented platform and scheduling options fit your needs. Publisher source
- Consider Gloam if you want the specific Mac/Windows features documented here: named presets, per-app profiles, paired dimming, break prompts, and local activity feedback.
Running multiple color-temperature tools can compound color changes. Disable the others while testing so the result can be attributed to one tool.
Feature comparison
Last checked: July 19, 2026. Each row was re-verified against first-party product documentation. “Not documented” means the cited feature page does not describe that capability; it is not proof that no implementation exists.
| Criterion | Gloam 1.0.3 | Night Shift | Night light | f.lux | First-party sources |
|---|---|---|---|---|---|
| Desktop platforms | macOS 13+; Windows 10/11 x64 | macOS on supported Mac models | Windows | macOS, Windows, and Linux | Gloam · Apple · Microsoft · f.lux |
| Manual color control | Six named presets plus manual 1900K–6500K control | Color Temperature slider | Strength slider | Adjustable daytime, sunset, and bedtime color settings | Gloam · Apple · Microsoft · f.lux |
| Scheduling | Approximate sun-based schedule on Mac; user-entered sunrise and sunset times on Windows | Custom or sunset-to-sunrise schedule | Set hours or sunset-to-sunrise schedule | Location and wake-time based schedule with custom lighting | Gloam Mac / Windows · Apple · Microsoft · f.lux |
| App-specific behavior | Assigns presets by Mac bundle ID or Windows EXE name | Not documented on the official Night Shift feature page | Not documented on the official Night light feature page | Can disable f.lux for the current app on Mac | Gloam · Apple · Microsoft · f.lux |
| Break and activity tools | Configurable break prompts plus local filtered-time, break, and activity-score feedback | Not documented on the official Night Shift feature page | Not documented on the official Night light feature page | Not documented in the official Mac quickstart | Gloam · Apple · Microsoft · f.lux |
| Display-path caveats | Gamma behavior can vary with HDR, adapters, and graphics drivers | Apple says availability on external displays depends on the display | Microsoft says Night light is unavailable with certain drivers, including DisplayLink or Basic Display | Publisher documentation describes multi-display fixes and platform-specific behavior; test the exact setup | Gloam · Apple · Microsoft · f.lux |
| Price and licensing | Free tier; Pro $14.99 one-time purchase | Built into macOS | Built into Windows | Free for Mac, Linux, and personal Windows use; corporate Windows licensing is offered | Gloam · Apple · Microsoft · f.lux |
Features and licensing can change. Follow the source links in the relevant row when making a purchase or deployment decision.
Does “driver-level” mean better?
It means Gloam changes the display gamma table rather than drawing a translucent window over your desktop. That matters for consistency across ordinary app windows and avoids a visible overlay layer. It does not mean Gloam changes the monitor’s physical LEDs, guarantees a measured color temperature, works through every HDR or adapter path, or has a proven medical advantage over another gamma-based filter.
Night Shift, Night light, f.lux, and Gloam all ultimately depend on the operating system, graphics stack, and display path. If HDR or a driver ignores gamma changes, marketing language cannot overcome that hardware/software boundary.
Gloam vs macOS Night Shift
Night Shift wins on trust and convenience: it is built into macOS, maintained by Apple, and integrates with Control Center. It offers exactly what many users need. Gloam earns its place when a user wants repeatable named temperatures, different behavior for specific apps, break prompts, paired dimming, and a menu-bar workflow that is the same on a Windows PC.
Choose Night Shift for “warm after sunset.” Choose Gloam for “manage how my screen behaves across tasks and remind me to disengage from it.”
Gloam vs Windows Night light
Night light is built into Windows and requires no third-party installation. Gloam provides additional controls, but the current Windows build is unsigned; SmartScreen may warn, and Smart App Control can block unsigned software without a per-app bypass. Microsoft source
Microsoft notes that Night light is unavailable with some drivers, including DisplayLink or Basic Display. Gloam's own gamma-table behavior can also vary with HDR, adapters, and graphics drivers. Microsoft source
Gloam vs f.lux
f.lux documents support for multiple desktop platforms and location/time-based color changes. Because third-party features and licensing can change, confirm the current options on the official f.lux site instead of relying on a static marketing comparison.
Gloam's narrower documented scope combines presets, brightness, per-app behavior, break prompts, and local activity statistics across its Mac and Windows builds. The current Windows executable is unsigned, which is an important installation trade-off.
Decision checklist
- Start with the built-in option. If it meets the need after a week, stop there.
- List one missing capability. Per-app neutrality? Break prompts? More predictable named presets? Cross-platform consistency?
- Test one third-party tool. Disable all other filters and try real workflows, including external monitors and video.
- Test the failure cases. Sleep/wake, lock/unlock, dock reconnect, HDR, color-sensitive apps, and fullscreen games.
- Keep what you notice using. Feature count matters less than a schedule and comfort routine you maintain.
What none of these tools proves
Color-temperature software should not claim to prevent retinal damage, cure digital eye strain, or guarantee better sleep. A 2023 Cochrane review of blue-light filtering spectacle lenses found little or no short-term eye-strain benefit and uncertain sleep effects. Software is not identical to lenses, so this review does not directly test Gloam; it supports keeping claims modest. Cochrane review
Sources and product documentation
Try the workflow, not the feature list
Gloam’s free tier is enough to test display compatibility and basic presets.
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