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Twilight Pro Unlock $0.20 @ Google Play


I have used the free version for a few months and wanted the hide notification when not filtering option which is available with pro and found it discounted to $0.20. Bargain! So for those who haven't bought it in previous discounts, grab it cheaply now.

I have heard Dr Karl talk about how disruptive blue light is to Melatonin production and therefore healthy sleep cycles, and have definitely noticed it easier to get to sleep after reading on my tablet/phone at bed time. I'm not a scientist and can't be sure it can be attributed to using Twilight, but who knows?

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

Thank you very much for your intention to support our development. This is a pro application for the Twilight app. Please install on top, do not uninstall Twilight first.

Related Stores

Google Play
Google Play

closed Comments

    • +17

      So only those who haven't bought it previously (like me) might give a rats?

      Then that's who it for. Trolls need not apply.

    • +23

      I must have missed the first 20 times. Thanks OP!

    • +6

      Geez you must be verging on depression then considering how many things come back in cycles on here! Eneloops, Krispy Kreme, 7-Eleven slushies, e-bay 20% off sales, 2 for 1 sales to Japan and a million (may be a slight exaggeration) more things…

      • Domino's…

        • Rugs a masters 😀

    • +3

      Did you sleep well. Lack of sleep can make you cranky. ;)

  • +5

    loved using this on a LED screen, but using this on amoled screen is not my cup of tea, even the black pixels are shown as red :(

    • +3

      Well it is a screen overlay, so I assume it covers all pixels, regardless of colour.

      • +2

        Agreed, still sucks on AMOLED.

        • I used to use this app on my old phone, but on my amoled screen that I have now I use EasyEyes Pro.

        • @bohn:

          Does this have the same problem with the black on a amoled display becoming lit?

    • CFLumen is what you're after, required root.

  • +2

    yes agreed, did not look good at all on my amoled screen.

  • +9

    CFLumen is a far better solution if you have root.
    It actually changes the colours output by the display driver to reduce the blue rather than just tinting everything red with an overlay.
    It also subsequently doesn't mess around with overlay permissions.

    • +1 CFLumen, also with Lux for less stupid auto-brightness. (Although now on the Pixel I don't have root yet so just Lux.)

      • Thanks buying Lux right now!

      • +1

        If you have the Pixel, then just enable Night Mode.

      • Lux is REALLY laggy on me Redmi Note 3 Pro running Exodus ROM.
        Trying to open the control panel results in Android timing out and prompting to force close Lux 3 times before it eventually displays the control panel. Doesn't actually seem to work either.
        It was so bad I refunded it.
        CF Lumen does 90% of what I want anyway.

  • +2

    There are better ones unless you haven't rooted.

  • +1

    Good app. Use the built in functionality in CM13 now though.

  • +2

    7.1 has night light built in, which is vastly superior to this app, so this is probably a cash grab before they're out of business.

    • +4

      Yeah. I don't think they will be losing too many customers as result of Nougat anytime soon

      • Too right, most carriers ditch updates to the devices at 24 months max. Most of the people I know hanging on to older phones are on Jelly Bean or KitKat.

  • -1

    Was a great app but now also useless on Nougat which has proper night mode integration.

    • +3

      Good to know, but many of us won't see Nougat for a long time unless installing a custom ROM.

  • Not a bad app for 20c. Didn't play nicely with my phone on android 6 due to some overlay stuff but works fine on android 7.

  • Why does it need my location and device history??
    Night Owl Screen Dimmer seems to be free and without dodgey permissions. It has Blue-Light Filter.

    • +5

      To detect sunrise/sunset times?

      • Makes sense. Thanks zuccs.

  • I bought this before. This is worth noting, there are lot's of high quality apps for free.

  • how do I gift this in Android app? I googled but instruction is not so clear?

    • +1

      I'm almost certain you can't gift an app. Sadly.

      If you wish to set up family library, you can share the app with family members as this is a family library compatible app.

      • I thank you for this information.

  • Just use CF.Lumen or LiveDisplay which is part of Cyanogenmod

  • I have a genuine question here… Why buy the app when the free version does what seems like the same thing??

    • +1

      as OP suggested to get "the hide notification when not filtering option"

  • -3

    Did you know the whole bluelight destroying melatonin thing has been debunked numerous times so now we have yet another little cottage industry selling apps that don't do anything based on pseudo science.

    • Any link? Quick search reveals otherwise.

    • Link to peer reviewed scientific study please.

    • I didn't know, no. How do you know?

    • The light is much more gentle on your eyes, don't really care about the science behind sleep behaviour related to it.

  • +2

    For work and home computers I can't recommend f.lux enough. If you suffer from headaches or eye strain at work or home then give it a shot. It makes the screen orangey but you can adjust it for the time of day.

    I should give twilight another go aswell but the reason I uninstalled originally was that I couldn't click a button on an app until I turned it off.

    • the reason I uninstalled originally was that I couldn't click a button on an app until I turned it off.

      That's why it has the pause option in notification bar, being an overlay it does has that issue with stuff like install buttons etc. It also has an Exclude Apps from filtering option in settings. (Which I only just noticed yesterday)

  • Thanks OP!

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