10 brightness and screen color temperature adjusting apps for Android devices

10 brightness and screen color temperature adjusting apps for Android devices
Most of the smartphones and tablets worth paying up for nowadays come with an ambient light sensor that automatically adjusts the display according to your setting's ambient lighting. However, that only deals with the brightness level. It does nothing for your display's color temperature, which can make the difference between comfortable night reading and "ouch, this thing is somewhat dim but it still burns my eyes!" It might sound like an insignificant problem to have, but we beg to differ.

Scientific research suggests that exposure to blue light before sleep distorts your natural (circadian) rhythm resulting in an inability to fall asleep. See, Melanopsin, the light receptor in your eyes, is very sensitive to a narrow band of blue light in the 460-480nm range. It's not a shortcoming of nature, it's just part of its job.

Anyway, this particular range happens to be emitted generously by your smartphone or tablet's display, and it also happens to suppress Melatonin production, which ruins your sleep-wake cycle. The effect can result from you falling asleep a full hour later than you'd like, to full blown insomnia. Yikes! If you have the habit of bringing your phone or tab to your bed, you're better off installing one of those apps. It's certainly easier than procuring a new set of eyes or having to doze off on sleep aids, we reckon.

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6 Comments

1. RebelwithoutaClue unregistered

I'm missing a very important one, cf.lumen by chainfire. Although this app does require root.https://play.google.com/store/apps/details?id=eu.chainfire.lumen&hl=en

2. azirgi

Posts: 7; Member since: Mar 28, 2013

Twilight is the best one!

3. fzacek

Posts: 2486; Member since: Jan 26, 2014

Which of these also work with on-screen buttons?...

4. wolverinexmen9

Posts: 112; Member since: Mar 31, 2011

Darker is also a really good one. No root. There are paid features but you can always go free.

5. RandomUsername

Posts: 808; Member since: Oct 29, 2013

So that's the reason I can't sleep at night?

6. gggirlgeek

Posts: 2; Member since: May 13, 2011

Yes, these warm screen tones do help you sleep. More acurately, the blue light from TV's and monitors (and indoor light bulbs) keep you awake. I found this out by using a PC app called f.lux (free.) I turn it down to very orange settings at night and I can get to sleep easier. Also my eyes don't hurt like they used to. More importantly, I use settings on my Android to turn the screen down to dim dark-orange while reading ebooks at night. I pass out within 30 minutes! This is not the case with the normal screen color. (Cyanogenmod has native OS settings for this.)

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