Download of F.lux 42.2 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is categorized as Theming Tools. We recommend checking the downloaded files with any free antivirus. The most popular versions of the tool are 30.0, 17.0 and 11.0. This free Mac app is an intellectual property of David Santiago.
From the developer:
f.lux makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day. Ever notice how people texting at night have that eerie blue glow?
Or wake up ready to write down the Next Great Idea, and get blinded by your computer screen?
During the day, computer screens look good-they're designed to look like the sun. But, at 9PM, 10PM, or 3AM, you probably shouldn't be looking at the sun.
You may want to check out more software for Mac, such as LUXOR: 5th Passage, Trapcode Lux or Lux Delux, which might be similar to F.lux.