Twilight Pro Unlock APK

Version 2.0 - com.urbandroid.lux.donate
Last updated: Fri, 05 Mar 2021 12:28:11 UTC

Protect your healthy sleep

Twilight Pro Unlock apk

APP Information

Download Version 2.0 (12)
Apk Size193.65 KB
App DeveloperUrbandroid Team
Malware CheckTRUSTED
Install on Android4.0.x and up
App Packagecom.urbandroid.lux.donate.apk

Download Twilight Pro Unlock 2.0 APK

App Description

Twilight Pro Unlock is urbandroid,donate,health,fitness,twilight,unlock, content rating is Everyone (PEGI-3). This app is rated 4.67 by 45 users who are using this app. To know more about the company/developer, visit Urbandroid Team website who developed it. com.urbandroid.lux.donate.apk apps can be downloaded and installed on Android 4.0.x and higher Android devices. The Latest Version of 2.0 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 59301+ times on store. You can also download com.urbandroid.lux.donate APK and run it with the popular Android Emulators.

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!

WARNING: Android O does no allow the app to cover your notifications and lockscreen anymore. We have some workarounds like wallpaper filtering etc..

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. 

Please read the basics on circadian rhythm and the role of melatonin:


Examples of related scientific research:

Amplitude Reduction and Phase Shifts of Melatonin, Cortisol and Other Circadian Rhythms after a Gradual Advance of Sleep and Light Exposure in Humans
Derk-Jan Dijk, Jeanne F. Duffy, Edward J. Silva, Theresa L. Shanahan, Diane B. Boivin, Charles A. Czeisler 2012

Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans
Joshua J. Gooley, Kyle Chamberlain, Kurt A. Smith, Sat Bir S. Khalsa, Shantha M. W. Rajaratnam, Eliza Van Reen, Jamie M. Zeitzer, Charles A. Czeisler, Steven W. 2011

Effect of Light on Human Circadian Physiology
Jeanne F. Duffy, Charles A. Czeisler 2009

Efficacy of a single sequence of intermittent bright light pulses for delaying circadian phase in humans
Claude Gronfier, Kenneth P. Wright, Richard E. Kronauer, Megan E. Jewett, Charles A. Czeisler 2009

Intrinsic period and light intensity determine the phase relationship between melatonin and sleep in humans
Kenneth P. Wright, Claude Gronfier, Jeanne F. Duffy, Charles A. Czeisler 2009

The Impact of Sleep Timing and Bright Light Exposure on Attentional Impairment during Night Work
Nayantara Santhi, Daniel Aeschbach, Todd S. Horowitz, Charles A. Czeisler 2008

Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina
Farhan H. Zaidi, Joseph T. Hull, Stuart N. Peirson, Katharina Wulff, Daniel Aeschbach & Co 2007

High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light.
Lockley SW, Brainard GC, Czeisler CA. 2003

Sensitivity of the human circadian pacemaker to nocturnal light: melatonin phase resetting and suppression
Jamie M Zeitzer, Derk-Jan Dijk, Richard E Kronauer, Emery N Brown, Charles A Czeisler 2000

Phase-shifting human circadian rhythms: influence of sleep timing, social contact and light exposure
J F Duffy, R E Kronauer, C A Czeisler 1996

Exposure to bright light and darkness to treat physiologic maladaptation to night work.
Czeisler CA..

App ChangeLog

  • Updated high-res icons

App Screens

Twilight Pro Unlock App Screen 1Twilight Pro Unlock App Screen 2Twilight Pro Unlock App Screen 3Twilight Pro Unlock App Screen 4Twilight Pro Unlock App Screen 5Twilight Pro Unlock App Screen 6Twilight Pro Unlock App Screen 7Twilight Pro Unlock App Screen 8Twilight Pro Unlock App Screen 9Twilight Pro Unlock App Screen 10Twilight Pro Unlock App Screen 11Twilight Pro Unlock App Screen 12Twilight Pro Unlock App Screen 13Twilight Pro Unlock App Screen 14Twilight Pro Unlock App Screen 15Twilight Pro Unlock App Screen 16


Apk scan results

Apk Scaned By TotalVirus Antivirus,com.urbandroid.lux.donate.apk Was Risky.Detected 1 From 55 Scan.
Scan Stats:harmless:0|type-unsupported:9|suspicious:0|confirmed-timeout:0|timeout:13|failure:1|malicious:0|undetected:50|
File type:Android
Magic:Zip archive data
File size:198301
Uncompressed Size:196876
Contained Files	:29
Contained Files By Type:xml:3,dex:1,MF:1,RSA:1,SF:1,png:21,

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Tom-avatar


    Used for years on an old LG and loved it. Bought pro version. Battery-friendly, great red filter color. Unfortunately when I installed it on my current phone- a Moto X- I ran into two issues: 1. literally no way to close the program: pause button pauses filter while program runs, but the 'stop' button in the main app sends you to system settings and there is no way to keep it from running in the bg 24/7 2. causes games to lag and sometimes crash while running, even when filter overlay is off

  2. John Bosler-avatar

    John Bosler

    I thought I had problems sleeping when really these devices were creating a self-fulfilling prophecy. Me using the device until I was tired enough to go to sleep but the lights we're keeping me awake There is sound science backing up how this works with red inducing sleep and blue inducing awakeness modifying the screen for the users benefit I like the adjustability and options of the app as most others I've tried leave much to be desired

  3. Lynn Albers-avatar

    Lynn Albers

    I get migraines from heavy exposure to blue light. I've been using Twilight since 2018 on my android and it has been a lifesaver. I was gifted an iPhone and while trying to find the app for iPhone noticed pro version on sale. I'm fully satisfied with the free version, but I just upgraded to pro because the developers deserve the support. There doesn't seem to be another app like this for iPhone or for windows desktop and I love this app so much I wish I could use it on all my screen devices.

  4. Adrian Szabo-avatar

    Adrian Szabo

    The best blue light filter for Android I have found. It almost seems like a cliché, reading through the reviews, but it too used the app for over 2 years and was so happy with its functionality, overall design and convinience I switched to pro version. Great work, keep it up! Jen tak dÑl. 😊

  5. Jo DR-avatar

    Jo DR

    The app is simple to use and does what itbsupposed to be. Very straightforward t obuse, and no annoying ads. I have been using the free app for years and that's good enough for me but I upgraded to Pro because they deserve it. Thank you to the developers.

  6. MilitantTruth ButtercookieCinnamini-avatar

    MilitantTruth ButtercookieCinnamini

    A MUST HAVE! The developer is outstanding, helpful. SET THE STANDARD LONG BEFORE ANYONE ELSE! Critical to well being and eye health!

  7. [[DIO]]-avatar


    Absolutely love this app. I have been using free version for like 2 years now. And I updated to pro just because I want to thank the developers of this app. This app helped my eyes so much that I wish I could have known about it much sooner than 2 years :)

  8. Adrian Hyncica-avatar

    Adrian Hyncica

    Use this all the time. Really reliable. Could do with a little mix and match for further latitudes.

  9. Zephyr White-avatar

    Zephyr White

    Wonderful, easy to use eye saver. I've used the free version for years, you don't get much from the pro unlock but the dev deserves it.

  10. Viet Phuong Doan-avatar

    Viet Phuong Doan

    I dont know what the pro features are, even the free version is enough for me. I just bought this to support cause I approve this app, which is very rare of me to approve any app ever. Nice job and keep up making more product like this