Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Windows
- Linux

Red Moon is described as 'The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer' and is a popular color temperature tool in the os & utilities category. There are more than 25 alternatives to Red Moon for a variety of platforms, including Windows, Linux, Mac, Android and Wayland apps. The best Red Moon alternative is f.lux, which is free. Other great apps like Red Moon are Redshift, LightBulb, gammastep and SunsetScreen.

World's 1st instantaneous content-aware brightness control app that let your screen brightness adapt instantly and automatically to provide the most optimal viewing experience for your eyes.




Free software for eye protection and more! It protects your eyes while you are working on the computer. Eye Saver has three main functions: blue light filter; eliminates the invisible flickering of the display backlight; reminds you to take breaks;


To schedule Night Light so it turns on automatically, select Start > Settings > System > Display > Night light > Night light settings.

"JBlueCut" is a blue light screen filter - eye protection App. Can effectively reduce the bluelight on screen and ease eyestrain by few simple steps.

Do you use your mobile phone after sunset? Do you use your phone within three hours of your bed time? If yes, then your device might be taking your sleep away. Bluelight from your mobile screens sends a signal to brain to wake up, and makes it difficult for us to sleep at night.


Night Shift: Blue Light Filter is the most popular Android Tablet alternative to Red Moon.
Kumux is a dynamic circadian color scheme for code editors and other software. It adjust color temperature, color hues, contrast and brightness levels throughout the day based on the position of the sun.

Kumux is the most popular SaaS alternative to Red Moon.
Twilight Blue Light Filter is an optimal night filter that can be created to provide a warm light night screen for your eye care.



Experience a more comfortable screen during nighttime use with LumiGuard: Night Mode. Adjust your display's color temperature and brightness to reduce eye discomfort in low-light environments.



Setting the color temp of the screen really only requires about 40 lines of C (80 or so all inclusive). sct is a crude utility which does roughly that. I’d say exactly that, but some of the calculations aren’t actually exact.
Shifty was made to expand the capabilities of the built in Night Shift feature in macOS. You can disable Night Shift for specific apps and custom time periods. It also provides easy access to a slider to fine tune your color temperature.


