Download Free Twilight APK Mirror

Download Twilight 9.4 (310) Latest Version APK Mirror File
App Name : Twilight
Package Name : com.urbandroid.lux
Category : Health and fitness
Developer :
Last Version : 9.4 (310)
Update time : 2018-12-05
APK File Size : 5.32 M
Installs : 5,000,000+ On Google Play
Requires Android : 4.0 (Ice Cream Sandwich, API 14)
Content Rating : 4.6
Developer : Visit website
Rate : 4.6/5 (330,043)

What’s New
Latest APIs compatibility Flexible profile scheduling Runtime permissions Notification channels Outlines icons Fix for backlight control on new Android versions

Twilight Video Trailer or Demo


The description of Twilight

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 any more..

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 flux of blue light emitted by 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.


Documentation
http://twilight.urbandroid.org/doc/

Get more from Twilight
1) Bed reading: Twilight is more pleasant on the eyes for night reading. Especially as it is able to lower the screen backlight far below the ability of the backligt controls on your screen

2) AMOLED screens: We have tested Twilight on an AMOLED screen for 2.5 years without any sign of depletion or over-burning. If properly configured Twilight causes less light emission (by enabling dimming) with more equal light distribution (dark areas of the screen such as the status bar get tinted). This may in fact increase your AMOLED screen life time.

Basics on circadian rhythm and the role of melatonin
http://en.wikipedia.org/wiki/Melatonin
http://en.wikipedia.org/wiki/Melanopsin
http://en.wikipedia.org/wiki/Circadian_rhythms
http://en.wikipedia.org/wiki/Circadian_rhythm_disorder

Permissions
- location - to find out your current sunset/surise times
- running apps - to stop Twilight in selected apps
- write settings - to set back-light
- network - access smartlight (Philips HUE) to shield you household light from blue

Automation (Tasker or other)
https://sites.google.com/site/twilight4android/automation

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, & Co 2012

Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans Joshua J. Gooley, Kyle Chamberlain, Kurt A. Smith & Co, 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, & Co 2009

Intrinsic period and light intensity determine the phase relationship between melatonin and sleep in humans Kenneth P. Wright, Claude Gronfier & Co 2009

The Impact of Sleep Timing and Bright Light Exposure on Attentional Impairment during Night Work Nayantara Santhi & Co 2008

Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina Farhan H. Zaidi & Co, 2007

High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light. Lockley SW & Co. 2003

Sensitivity of the human circadian pacemaker to nocturnal light: melatonin phase resetting and suppression Jamie M Zeitzer, Derk-Jan Dijk & Co 2000

For a desktop alternative, try RedShift (Linux) or on Windows the app which has no relation to this project whatsoever, whose name cannot be said aloud or whispered as it is a Trademark, lets call it Lord Voldemort of the blue light flux filtering apps.Guessed it? Let us know in the comments.
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Twilight APK Version History
  • Twilight 9.4 (310) APK (Latest Version)
    Version : 9.4 (Code: 310)
    Date: 2018-12-05
    Requires Android: 4.0 and Up
    File Size : 5 MB (APK file)
    File APK Md5: c24452a1ec9f42a46364d7df6cd56e5b
    File APK Sha1: 6665fef8c6098738c3fedf3f70cdedec9bf539ee
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
     Latest APIs compatibility Flexible profile scheduling Runtime permissions Notification channels Outlines icons Fix for backlight control on new Android versions 
  • Twilight 9.1 (305) APK
    Version : 9.1 (Code: 305)
    Date: 2018-11-07
    Requires Android: 4.0 (Ice Cream Sandwich, API 14)
    File Size : 5 MB (APK file)
    File APK Md5: 625e89375007f3b17f3372b741be8878
    File APK Sha1: 6a7e5f4f1ed07fdc10b844f20ec058265ada4575
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
    -Latest APIs compatibility
    -Flexible profile scheduling
    -Runtime permissions
    -Notification channels
    -Outlines icons
    -Fix for backlight control on new Android versions
  • Twilight 9.1 (303) APK
    Version : 9.1 (Code: 303)
    Date: 2018-11-03
    Requires Android: 4.0 and Up
    File Size : 5 MB (APK file)
    File APK Md5: 384074c4dbe0f758617b7de0d1d291ac
    File APK Sha1: bb5d4fab9ad97a02c525b1255d0ebf3a46deac36
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
     Latest APIs compatibility Flexible profile scheduling Runtime permissions Notification channels Outlines icons Fix for backlight control on new Android versions 
  • Twilight 9.1 (301) APK
    Version : 9.1 (Code: 301)
    Date: 2018-10-26
    Requires Android: 4.0 and Up
    File Size : 5 MB (APK file)
    File APK Md5: 5718feef6a77b040785e60f969b0598e
    File APK Sha1: 33428fe2fc012cd7179c8e424c1b89fc7f4a59b6
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
     Latest APIs compatibility Flexible profile scheduling  Runtime permissions Notification channels Outlines icons Fix for backlight control on new Android versions 
  • Twilight 9.1 (291) APK
    Version : 9.1 (Code: 291)
    Date: 2018-09-25
    Requires Android: 4.0 (Ice Cream Sandwich, API 14)
    File Size : 5 MB (APK file)
    File APK Md5: 8b310bbcf3af0de7aac5d69f56d4e2f3
    File APK Sha1: 7996ce97bda1811c56365fea632e2592cbc635bd
    Signature:
    What's new :
    - fix for adaptive con on Pixels
    - new translations (many thanks)
  • Twilight 9.1 (285) APK
    Version : 9.1 (Code: 285)
    Date: 2018-09-22
    Requires Android: 4.0 (Ice Cream Sandwich, API 14)
    File Size : 5 MB (APK file)
    File APK Md5: d6112a9895b44e2e7a1c01b601c4434f
    File APK Sha1: 73e0afeaa463001c12309f05fe6a7254d7529411
    Signature:
    What's new :
    - fix for adaptive con on Pixels
    - new translations (many thanks)
  • Twilight 9.0 (284) APK
    Version : 9.0 (Code: 284)
    Date: 2018-09-14
    Requires Android: 4.0 and Up
    File Size : 6 MB (APK file)
    File APK Md5: 2ce13037ff1679f867026678c8f913fc
    File APK Sha1: d1e19cdea75ce23b81e71749cae96f939dcd8a57
    Signature:
    What's new :
     fix for adaptive con on Pixels new translations (many thanks) 
  • Twilight 9.0 (282) APK
    Version : 9.0 (Code: 282)
    Date: 2018-08-23
    Requires Android: 4.0 (Ice Cream Sandwich, API 14)
    File Size : 6 MB (APK file)
    File APK Md5: 7005502e8541383627355b2b48551490
    File APK Sha1: be633c7956e1cb52648ad229a0983e136872dd8c
    Signature:
    What's new :
    - fix for adaptive con on Pixels
    - new translations (many thanks)
  • Twilight 9.0 (280) APK
    Version : 9.0 (Code: 280)
    Date: 2018-08-17
    Requires Android: 4.0 (Ice Cream Sandwich, API 14)
    File Size : 6 MB (APK file)
    File APK Md5: 8335f2d466db6ea419e50711246d9107
    File APK Sha1: 09978d2a772541d522f27c47a85c8966c6885cf9
    Signature:
    What's new :
    - fix for adaptive con on Pixels
    - new translations (many thanks)
  • Twilight 8.3 (277) APK
    Version : 8.3 (Code: 277)
    Date: 2018-05-29
    Requires Android: Android 4.0+ (Ice Cream Sandwich, API 14)
    File Size : 6 MB (APK file)
    File APK Md5: 8bd6c0977616ff5a96e05974d79cfda5
    File APK Sha1: 2ff8648d3b0d2be9bf8fdb3e992d01412408c443
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
    - fix for adaptive con on Pixels - new translations (many thanks)
  • Twilight 8.3 (275) APK
    Version : 8.3 (Code: 275)
    Date: 2018-05-28
    Requires Android: 4.0 (Ice Cream Sandwich, API 14)
    File Size : 6 MB (APK file)
    File APK Md5: 246466d56657241023fd515865a2d6d6
    File APK Sha1: 5059f810381667f203094031276302b084088fb3
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
    8.2
    - wallpaper filtering fixes
    - fix for scheduled stop of the app
    8.1
    - fix for Android 5.X auto-pause in apps issues
    - fix for Chromebooks
  • Twilight 8.3 (273) APK
    Version : 8.3 (Code: 273)
    Date: 2018-05-18
    Requires Android: 4.0 and Up
    File Size : 6 MB (APK file)
    File APK Md5: 411da21da3f302561e073e51fe1f2410
    File APK Sha1: b8431b659a51bd261a8531329f48b3a00b04729f
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
    8.2
    - wallpaper filtering fixes
    - fix for scheduled stop of the app
    8.1
    - fix for Android 5.X auto-pause in apps issues
    - fix for Chromebooks
  • Twilight 8.2 (271) APK
    Version : 8.2 (Code: 271)
    Date: 2018-03-15
    Requires Android: 4.0 and Up
    File Size : 6 MB (APK file)
    File APK Md5: c5fc5f3c2b94a69441abcab5fb688c7a
    File APK Sha1: 720e1647f49bb70c617c9a6aaa07d87898f48f91
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
  • Twilight 8.1 (267) APK
    Version : 8.1 (Code: 267)
    Date: 2017-12-15
    Requires Android: Android 4.0+ (Ice Cream Sandwich, API 14)
    File Size : 6 MB (APK file)
    File APK Md5: 5e2bec7f6666a29d19a7dd85041e4db6
    File APK Sha1: cae33d7e72559a5c8eae56026515b167de945ffe
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
    8.1
    - fix for Android 5.X auto-pause in apps issues
    - fix for Chromebooks
    8.0
    - Black quick settings tile panel with Android 8.1 and home screen filtering enabled
    - Because of wallpaper filtering the app may require the storage permission on some phones, but if you are not using this you can revoke the permission after updating
    - get rid of Accessibility option for auto-pause in apps as of new Play Store policies (if you are still using this, please re-configure)
  • Twilight 8.1 (265) APK
    Version : 8.1 (Code: 265)
    Date: 2017-12-01
    Requires Android: 4.0 (Ice Cream Sandwich, API 14)
    File Size : 6 MB (APK file)
    File APK Md5: e9fe1e4aaf90486e7a46bf27c764b14f
    File APK Sha1: 6d80ebf3f2af8bfaf76d257bc9587094ff964c0e
    Signature: 00a0e53c9a3f5d14da5e698ff420e4a7776ea4b1
    What's new :
    8.0
    - Black quick settings tile panel with Android 8.1 and home screen filtering enabled
    - various fixes in wallpaper filtering
    - Because of wallpaper filtering the app may require the storage permission on some phones, but if you are not using this you can revoke the permission after updating
    - get rid of Accessibility option for auto-pause in apps as of new Play Store policies (if you are still using this, please re-configure)
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