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Twilight Pro $0.20 @ Google Play

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Twilight Pro $0.20 @ Google Play
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lyl on 31/01/2017 - 06:14 play.google.com (1306 clicks)

Twiling pro is back down to 20c :)

Are you having trouble falling asleep? Are your kids hyperactive when playing with the tablet before bed time?
Are you using your smart phone or tablet in the late evening? Twilight may be a solution for you!
Recent research suggests that exposure to blue light before sleep may distort your natural (circadian) rhythm and cause inability to fall asleep.

The cause is the photoreceptor in your eyes, called Melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480nm range which may suppress Melatonin production - a hormone responsible for your healthy sleep-wake cycles.

In experimental scientific studies it has been shown an average person reading on a tablet or smart phone for a couple of hours before bed time may find their sleep delayed by about an hour.

The Twilight app makes your device screen adapt to the time of the day. It filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a soft and pleasant red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.

PRO features
- more than 2 predefined profiles
- adjustable transition time
- option to turn off Twilight service altogether during inactive times
- new features will often first appear as PRO

Mobile Android App

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closed Comments

  • the-mal on 31/01/2017 - 08:26
    +4

    Even for 20c is it worth it over the free version which is 100% functional?

    I love the app and use it nightly, but I can't think of any of those tiny "Pro only" features that I'd use. The free version is simple, set and forget.

    I may get it just to throw the devs 20c for something I use daily (to alleviate freebie guilt), but the pro features seem worthless.

    • idonotknowwhy on 31/01/2017 - 09:32

      I was thinking the same thing last time it was $0.2, but ended up getting it in case they release useful pro-only features in the future.
      Didn't consider throwing the devs 70% of 20 cents lol.

  • flickr on 31/01/2017 - 09:00
    +3

    When I use this app (turn on automatically by schedule), the other apps asked me to turn off screen overlay. Had to pause or disable the twilight apps and get it back on again so in the end I uninstalled this.

    • punkindrublic on 31/01/2017 - 09:38
      +1

      I've noticed this occurring recently as well. It's a pain, but I've found that you can turn Twilight back on after the other app loads and it works without trouble. A great app despite this annoyance

      • flickr on 31/01/2017 - 09:41
        +2

        True, but I've found another solution, don't use your mobile before your sleep time :D

      • polol on 31/01/2017 - 10:58
        +1

        I used to have it in the notification bar so i could quickly disable/enable it for this specific reason.

        It's an android limitation that it works by being a literal screen overlay (like red cellophane) instead of adjusting the white/colour balance as that needs root access.

        • punkindrublic on 31/01/2017 - 12:54

          I've rooted my tablet, so is it possible to enable root access in Twilight to circumvent the screen overlay issue?

        • scrimshaw on 31/01/2017 - 14:28
          +1

          @punkindrublic:

          You should use Cf.Lumen. It's free

        • rygle on 31/01/2017 - 21:50

          @scrimshaw:

          Agreed. CF Lumen is good and free. Our if your phone is rooted there is an option called live display that does the same thing and is in several of the more recent custom ROMs - again free.

        • punkindrublic on 01/02/2017 - 10:59

          @scrimshaw:

          I coughed up for Twilight Pro (they deserved 20c for the benefits the app's given me over the years) but will try CF.lumen out as well and see how that compares!

    • Shame on 31/01/2017 - 09:43
      +2

      I did the same thing. The app was great but you get an error message saying "screen overlay detected" any time another app wants to request a permission. So when you install a new app you need to do this…
      1) Install new app
      2) Go to Android settings and disable Twilight
      3) Open new app and enable permissions it wants (e.g. access camera, access contacts, etc.)
      4) Go back to settings and re-enable Twilight

      In the end it was too much hassle so I uninstalled it. I think this only started happening in Android 6 (marshmallow), hopefully it's fixed in Android 7.

      • flickr on 31/01/2017 - 09:45

        I think you have this feature built in Android 7, so you might not even need to install separate app anymore.

        • rygle on 31/01/2017 - 21:53

          Look for live display. May be a standard android feature in later versions, not just custom ROMs as I said in my previous comment.

  • violin on 31/01/2017 - 09:54

    I'm very happy with the free version, but bought the pro version anyway to support the developers. Well, my 20c support…

  • psyren89 on 31/01/2017 - 10:24
    +1

    I've found cf lumen to be better, but have only ever used it on rooted devices. Unrooted, it didn't look or perform very well.

    • NigelTufnel on 31/01/2017 - 11:33
      +1

      Yep, true blue light filtering requires root permission. These just make your screen look weird…

  • Diji1 on 31/01/2017 - 10:46
    -1

    And no on ever started sleeping better because they slightly changed the colour of the screen they looked at before sleep. At least it isn't claiming to be able to divine the brain's alpha frequency state like sleep apps do I guess!

  • champsk on 31/01/2017 - 10:53
    +1

    just stop using your phone before bed

  • peterpeterpumpkin on 31/01/2017 - 11:00

    I use this app but I think it's missing a "pause for 1 hour" or similar, like the desktop f.lux app. I always forget to turn the app back on when I'm done. You can add a screen widget to avoid having to open the app before pausing though.

    I like to dim and redden the screen at quite an intense level (my phone looks too "blue and bright" to me otherwise) so it can make the phone's readability suddenly unbearable outdoors at sunset or indoors with lights on. Of course it's unrealistic to always use the sun as a gauge (default setting, they do have "civil sunset") since those living far from the equator in winter probably don't go to sleep that much earlier (the sun sets at 4:29 pm today in Oslo…or 3:55 pm in Norilsk, Russia).

    Although adaptive brightness doesn't always work that well in Android by default, it would be interesting to see if Twilight could be improved by doing something similar. If melatonin and eye strain is what it's all about then the app becomes somewhat pointless and irritating in a brightly lit room at 6 pm in June or when you're naughtily having dinner with friends at 9 pm tonight in a well-lit restaurant.

  • DauntingEarth on 31/01/2017 - 11:25

    doing screenshot picks up the orange tint with it was my problem

  • NigelTufnel on 31/01/2017 - 11:32
    +2

    I thought that these overlay apps actually did nothing to actually filter out blue light (they just apply a red filter over the top).
    The only apps that actually filter out blue light require root permissions or to be built into the OS (like on my OnePlus One).

    • scrimshaw on 31/01/2017 - 11:56
      +2

      Correct, this is not as effective as root only apps like Cf Lumen or F. Lux

      I noted some phones have night mode now. Xiaomi for instance seems to have a night (read) mode in the original Rom.

      • BartholemewH on 31/01/2017 - 14:16

        Huh, does too (Xiaomi). Thanks.

  • rompastompa on 31/01/2017 - 14:33

    This is cheaper than half a bottle of scotch, which will do the same thing ;)

    • havebeerbelywillsumo on 31/01/2017 - 16:43

      Yeah but that alternative tends to also install the following apps

      RandomImpacts_2 Any Device

      RootMyDeviceBro Ultimate

      BlurItAll

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