f.lux warms your screen.
Solis warms it — and makes it bright.
f.lux is the app that taught everyone screens should get warm at night, it's free, and it still does that one thing well. Solis covers the same ground — scheduled warmth that follows your local sunset, down to deep ember levels f.lux calls home — and then does the thing f.lux was never built for: real brightness control of the MacBook Pro's XDR panel, up to its full 1600 nits, eased automatically by battery, heat and the light in your room.
Solis vs f.lux
| Solis | f.lux | |
|---|---|---|
| Scheduled warmth (sunset to sunrise) | ✓ | ✓ |
| Deep warm / ember range | ✓ | ✓ |
| Dark-adapted red mode | ✓ | ✓ |
| Brightness above macOS's 100% | ✓ to 1600 nits | ✕ |
| Drives the real backlight (true color) | ✓ | gamma only |
| Battery & thermal-aware auto | ✓ | ✕ |
| Adapts to ambient light & learns | ✓ | ✕ |
| Night dim to true black at 0% | ✓ | ✕ |
| Price | $9.99 one-time | Free |
Which should you pick?
f.lux is a better fit if…
All you want is warmth on a schedule and you want it free. f.lux invented this category, it's respected for a reason, and if your screen is bright enough for you as it is, you don't need to pay anyone anything.
Solis is a better fit if…
Warmth is only half of what you want from your screen. Solis gives you the same sunset-to-sunrise warmth — and real control of the panel's brightness on top: the full 1600-nit XDR boost for sunlit rooms, automatic easing on battery and heat, fine night dimming all the way to true black. One app for the whole day, $9.99 once.
Honest note: f.lux is free and excellent at the one thing it does. Solis earns its price with the brightness half — if you never wish your MacBook were brighter, stick with f.lux. If any detail here is out of date, email hello@heysolis.com.
See also: Solis vs Lunar · Solis vs Vivid · Make your MacBook brighter than 100%