F.lux Finally Arrives On Android, Requires Root To Function

F.lux Finally Arrives On Android, Requires Root To Function

Android (root): F.lux is one of our favourite tools for automatically changing the colour temperature of your monitor based on the time of day. Now, it’s arrived on Android, but you’ll need root to use it.

Other colour temperature balancing apps have come to Android while we waited for f.lux, but many of them work by rendering a coloured overlay on top of your apps. This isn’t the ideal way to change the colour temperature of a display, as it can cause some elements to be displayed very weirdly.

F.lux instead changes the colour temperature of the display at a system level, which should result in more accurate (if adjusted) display colours. The downside is this process requires root. Moreover, a very similar feature is currently available in the Android N preview, and it’s unclear if it might roll out to everyone once Google releases N to the public. Until we find out, f.lux is a great option for rooted users in the meantime.

f.lux [Google Play Store via Android Police]


  • Alternatively, Twilight does the same job and doesn’t require root. I’ve been using it for a few years and I’m pretty happy with the results.

    • Twilight just applies a red filter over the screen.
      f.lux instead accesses the GPU and desaturates all the blue pixels.

      Apparently the latter is more effective.

    • I like Twilight, though I occasionally have issues regarding the overlay. Some apps presumably for security purposes just don’t like it.

  • What about cf.lumen? Isn’t that essentially the same as f.lux yet has been around for a while?

    • Thanks for that. Installed F.lux and I like it, though a bit barebones at the moment. cf.lumen on other hand seems nice fleshed out and its by chainfire so definitely giving it a go.

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