The best alternative to f.lux is Twilight, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to f.lux and ten of them are so hopefully you can find a suitable replacement. Other interesting alternatives to f.lux are Redshift, Iris mini, Iris and CF.lumen.
The app filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.
Czechia
EU
Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.
DenmarkEU
Enjoy free cross-platform blue light reduction and PWM flicker-free brightness control with Iris mini. Minimalistic design, portable, and automatic for no-hassle, eyestrain-relief across all devices. Simply double-click to activate, perfect for every lighting condition.
BulgariaEU
Reduces blue light and flicker for eye comfort, supports auto color temperature adjustment based on time, customizable modes, overlays, color and font options, docking station support, and accessible part-screen filtering for diverse needs.
BulgariaEU
CF.lumen - don't let your phone blind you! CF.lumen changes the colors of your Android device's display based on the position of the sun. With the default settings, your display will get a warmer tint (lower color temperature) when the sun is down, to look more like indoo.
NetherlandsEU
PortugalEU
NightTone makes your screen more comfortable, enjoyable and healthier by shifting the colors of your display to a warmer, eye-friendly palette. It makes you sleep and feel better.
RomaniaEU
Screen Shader is a chrome extension designed to tint the screen a “cozy” orange color to reduce eye strain, eye fatigue, and restore day/night balance, while also providing a wide variety of settings for everyone's different tastes!.
GermanyEU
RomaniaEU
