8

votes

Anybody know whether F.lux is available for smartphones (iPhone or Android) to reduce blue light exposure?

Asked on June 19, 2015
Created January 06, 2011 at 12:43 AM

I've seen F.lux mentioned on a couple of paleo / primal sites recently - a free program to reduce the blue light from your computer screen so that you can get a more restful sleep at night.

My problem isn't just with PC blue light, though; my husband and I often play Angry Birds or other games, or surf the web and check email on my Droid at night.

Does anybody know whether there's a version of F.lux available (or something similar) for smartphones?

Thanks. :)

404a92f566e2e1c75dd3b97a459a1f40

(0)

on November 05, 2013
at 01:27 PM

Note: it is free!

Cd2ff8c68dd1f1d539ad7f0ee94b0421

(1061)

on November 24, 2011
at 05:33 PM

Thanks, I loaded this on my HTC phone.

03f5a69fde4012b827ebdb6d93b71e7a

(2007)

on November 08, 2011
at 07:51 PM

Awesome! Thanks!

Aa5e411ac90ac543cdb7d06a812a908d

(446)

on November 08, 2011
at 08:08 AM

I've also been using NeyetLight for some time now on my ZTE Blade, and it does the job. Definitely recommended! And there's no need to root the phone to be able to use it.

Ef31d612a661d9fcb19c8965d3a2bd12

(533)

on November 01, 2011
at 01:52 PM

Interesting - I just downloaded this, we'll see how it works!

E2b9c679315c7c9c7265783dde89f350

(1303)

on September 28, 2011
at 06:24 AM

Yes! I love my book light from them. The clip that attaches to the book is a bit thick and awkward, but sturdy, and I love the dual snake lights. I'm just hoping that it lasts longer than my other book lights have done.

6120c989fd5b69f42a0834b69b87955b

(24553)

on September 27, 2011
at 10:58 PM

If you go to a theatre or photo supply store, you can get a piece of amber or red light gel. You might be able to score a few free samples that would do the trick if the screen is small enough.

Da8e709acde269e8b8bfbc09d1737841

(1906)

on August 31, 2011
at 01:19 PM

There are glasses you can buy that block out blue light for exactly this purpose. You know, a removable screen protector made out of this material for the iPhone would be an awesome Kickstarter project...

Da8e709acde269e8b8bfbc09d1737841

(1906)

on August 31, 2011
at 01:18 PM

James is right: this can't be done on iOS devices universally, though developers could probably build this into their apps if they wanted to. Anything system-wide would have to be developed by Apple, so maybe put the big in Tim Cook's ear and see if it goes anywhere.

D30ff86ad2c1f3b43b99aed213bcf461

on January 06, 2011
at 11:38 PM

Days like these makes me wish that I've been using Linux much longer than I have.

D30ff86ad2c1f3b43b99aed213bcf461

on January 06, 2011
at 04:54 PM

Sweet. Do you think this kind of bulk cellophane would cling to the screen as required?

77732bf6bf2b8a360f523ef87c3b7523

(6157)

on January 06, 2011
at 03:41 PM

I like it. A low(er)-tech solution. Please post a link if you find any.

5e36f73c3f95eb4ea13a009f4936449f

(8280)

on January 06, 2011
at 01:09 AM

My iPhone has a borked up autoadjust, seems to do the opposite of what is expected (brighter when it is dark out and dimmer in the bright daylight). A bit annoyting, and I have to tweak manually at times.

D30ff86ad2c1f3b43b99aed213bcf461

on January 06, 2011
at 01:02 AM

Yes; my Droid has autoadjust available, which is my current best option it seems.

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17 Answers

7
C527739042c44e9760130577cf56203a

on August 31, 2011
at 11:24 AM

There's an app called neyetLight (pronounced nightlight) in the android market that costs 0.99. It works similarly to the F.lux program for computers.

Cd2ff8c68dd1f1d539ad7f0ee94b0421

(1061)

on November 24, 2011
at 05:33 PM

Thanks, I loaded this on my HTC phone.

Ef31d612a661d9fcb19c8965d3a2bd12

(533)

on November 01, 2011
at 01:52 PM

Interesting - I just downloaded this, we'll see how it works!

Aa5e411ac90ac543cdb7d06a812a908d

(446)

on November 08, 2011
at 08:08 AM

I've also been using NeyetLight for some time now on my ZTE Blade, and it does the job. Definitely recommended! And there's no need to root the phone to be able to use it.

03f5a69fde4012b827ebdb6d93b71e7a

(2007)

on November 08, 2011
at 07:51 PM

Awesome! Thanks!

3
03f5a69fde4012b827ebdb6d93b71e7a

on January 06, 2011
at 04:45 PM

I looked into this for my Android and I can't remember specific links offhand, but my conclusion was that it didn't actually seem to be possible at this point, even to write your own app. There's no mechanism for adjusting the colour temperature.

I like doing crossword puzzles on mine at night but have cut back on that.

I was similarly thinking that an amber screen filter would be the best solution. Perhaps a theatre light gel or just some cellophane?

Potential: http://www.papermart.com/Product%20Pages/Product.aspx?GroupID=11987

D30ff86ad2c1f3b43b99aed213bcf461

on January 06, 2011
at 04:54 PM

Sweet. Do you think this kind of bulk cellophane would cling to the screen as required?

3
4b97e3bb2ee4a9588783f5d56d687da1

on January 06, 2011
at 03:00 AM

Perhaps a screen filter? Like safety glasses for your phone. I'll buy one.

77732bf6bf2b8a360f523ef87c3b7523

(6157)

on January 06, 2011
at 03:41 PM

I like it. A low(er)-tech solution. Please post a link if you find any.

Da8e709acde269e8b8bfbc09d1737841

(1906)

on August 31, 2011
at 01:19 PM

There are glasses you can buy that block out blue light for exactly this purpose. You know, a removable screen protector made out of this material for the iPhone would be an awesome Kickstarter project...

6120c989fd5b69f42a0834b69b87955b

(24553)

on September 27, 2011
at 10:58 PM

If you go to a theatre or photo supply store, you can get a piece of amber or red light gel. You might be able to score a few free samples that would do the trick if the screen is small enough.

3
5e36f73c3f95eb4ea13a009f4936449f

(8280)

on January 06, 2011
at 01:00 AM

I've not seen anything on it on the iPhone App store. I'm inclined to think that it's not doable. It's plausible for apps to be able to control the blue frequency when running that specific application. However, those changes are sandboxed to that app only. It doesn't affect the phone interface or other applications. It might be doable with a jailbreak, but I can't say for sure.

I also can't speak to the Droid. Don't have any experience with it.

My recommendation would be just to dim the screen at night when using it. Not perfect, but I think it's the best you'll get.

D30ff86ad2c1f3b43b99aed213bcf461

on January 06, 2011
at 01:02 AM

Yes; my Droid has autoadjust available, which is my current best option it seems.

5e36f73c3f95eb4ea13a009f4936449f

(8280)

on January 06, 2011
at 01:09 AM

My iPhone has a borked up autoadjust, seems to do the opposite of what is expected (brighter when it is dark out and dimmer in the bright daylight). A bit annoyting, and I have to tweak manually at times.

Da8e709acde269e8b8bfbc09d1737841

(1906)

on August 31, 2011
at 01:18 PM

James is right: this can't be done on iOS devices universally, though developers could probably build this into their apps if they wanted to. Anything system-wide would have to be developed by Apple, so maybe put the big in Tim Cook's ear and see if it goes anywhere.

2
Cd2ff8c68dd1f1d539ad7f0ee94b0421

on November 24, 2011
at 05:06 AM

Just to get this information on here, there is an "F.Lux" workalike available on Linux called redshift. I use it on my Arch Linux laptop.

2
0dca529dffc84659a29a28e907f56ea8

on September 27, 2011
at 10:47 PM

F.lux is now available...but you have to jailbreak your iPhone http://stereopsis.com/flux/cydia/

2
A6b2325aefabe3e40c89646e40223f6f

on July 04, 2011
at 03:46 PM

Possibly of interest to ipad users, I got one of these: https://www.lowbluelights.com/detail.asp?id=77

Note that it is pretty flimsy; just a very thin and flexible piece of plastic with a cardboard surrounding that is supposed to stick to your ipad. Because of the matte screen protector I have on there, it doesn't actually stick, so I just use a chip clip to keep it on there, which works just fine (that's about the only use I have for chip clips these days anyway).

Once affixed it works really well in terms of reducing the ridiculously bright ipad screen at night and filtering out the blue light.

I also got a book light from those same people, which is pretty cool.

E2b9c679315c7c9c7265783dde89f350

(1303)

on September 28, 2011
at 06:24 AM

Yes! I love my book light from them. The clip that attaches to the book is a bit thick and awkward, but sturdy, and I love the dual snake lights. I'm just hoping that it lasts longer than my other book lights have done.

1
44739854bd06eb5c32af5d33aa866864

(859)

on March 03, 2015
at 02:19 PM

I recently looked through the app store recently and came across a couple : Blue Light Filter and Twilight... Neither one worked well and they drained my battery by running continuously! 

I'll stick with these stylish glasses. You might get a few weird looks, but they work well and don't cost a fortune (ie anything from lowbluelights.com). Plus, you can watch TV, check your cell phone and use normal lights and still limit the effect on your circadian rhythm...

1
F452bc022ea64d977017bee7ecbb863c

on November 24, 2011
at 04:51 AM

F.lux merely lowers the blue light but certainly does not eliminate it. The attached comparative side-by-side images show the color temperature cycle using the f.lux software along with a blue-blocking filter on the same screen. It's quite obvious the level of blue light is lessened by f.lux but it cannot totally eliminate blue light being emitted by the device. (The blue blocking filter was obtained from www.lowbluelights.com).

http://www.4freeimagehost.com/show.php?i=a29829ba735c.jpg a29829ba735c.jpg

1
3280e4942b57ce110f68f5f4db391275

on November 08, 2011
at 07:40 AM

According to the f.lux "F.AQ", an Android version is in the works.

In the meantime I just found this today, which is a plugin for Chainfire3D ($5.49).

1
246ebf68e35743f62e5e187891b9cba0

(21420)

on July 04, 2011
at 03:52 PM

My "hacked" Android phone has the ability to change it's color temperature, albeit in an extreme way... it basically can turn off any spectrum in the LED's. The absence of blue and yellow puts it into "night vision" mode which is a red filter, and I use this when I have to use my phone after lights-out (I am an on-call server engineer). I will say it's not the most pleasant way to use my phone, but it does prevent me from getting white-out retinas, late at night.

1
Ca8db422486d1f756750287d34b67808

on July 04, 2011
at 02:53 AM

I am looking for an f.lux-like solution for my iPad. Brightness isn't the issue, it is color temperature. I have been looking for colored screen protectors or clinging gel but no luck so far.

1
Ddb550ab6312843862c9ca3f1e6358b4

on January 06, 2011
at 05:42 PM

There's an app called Screen Filter available in the Market that lets you turn the screen brightness WAY down. It's the closest thing I've seen to F.lux.

You have to have Root access to your phone for it to work though.

1
628f408b603d44d3d0f3c74d86f8bff7

(35)

on January 06, 2011
at 05:26 PM

I'm going to look into it (for Android) these days, its definitely possible. You only have to "root" your phone most probably.

D30ff86ad2c1f3b43b99aed213bcf461

on January 06, 2011
at 11:38 PM

Days like these makes me wish that I've been using Linux much longer than I have.

0
E1a3d9def35c76faf3a84b0b2e24d702

on November 07, 2013
at 04:15 AM

I use twilight for my android. It's free too :)

0
Dcf0f08696725e632b3ad645c6a780b9

on November 05, 2013
at 01:22 PM

I know this is old but I haven't seen this app for Android mentioned.Lux offers f.lux like functionality plus it offers a better auto brightness control over stock and it provides an astronomy mode (red filter). Great app. Worth the cost.

0
404a92f566e2e1c75dd3b97a459a1f40

on November 05, 2013
at 11:30 AM

Yesterday I found an Android App that does was f.lux does: Twilight from Urbandroid Team.

404a92f566e2e1c75dd3b97a459a1f40

(0)

on November 05, 2013
at 01:27 PM

Note: it is free!

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