Twilight: Blue light filter
9.2 29K+
v14.25 by Petr Nálevka (Urbandroid)
Editor's Review
The app filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.About Twilight
Twilight (Package Name: com.urbandroid.lux) is developed by Petr Nálevka (Urbandroid) and the latest version of Twilight: Blue light filter 14.25 was updated on February 9, 2026. Twilight: Blue light filter is in the category of Health & Fitness with the feature Offline Logging and Blue light filter, etc. You can check all apps from the developer of Twilight: Blue light filter and find 200 alternative apps to Twilight: Blue light filter on Android. Currently this app is for free. This app can be downloaded on Android 7.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
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? Are you sensitive to light during migraine?
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. See references below..
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.
You can also use Twilight on your Wear OS device.
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 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
Accessibility Service
In order to filter also your notifications and lock screen the app may ask for enabling Twilight Accessibility Service. The app uses this service only to better filter your screen and does not collect any personal information. Please read more about this at https://twilight.urbandroid.org/is-twilights-accessibility-service-a-thread-to-my-privacy/
Wear OS
Twilight also syncs your Wear OS screen with your phone's filter settings. You can control filtering from a "Wear OS Tile".
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
Are you using your smart phone or tablet in the late evening? Are you sensitive to light during migraine?
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. See references below..
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.
You can also use Twilight on your Wear OS device.
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 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
Accessibility Service
In order to filter also your notifications and lock screen the app may ask for enabling Twilight Accessibility Service. The app uses this service only to better filter your screen and does not collect any personal information. Please read more about this at https://twilight.urbandroid.org/is-twilights-accessibility-service-a-thread-to-my-privacy/
Wear OS
Twilight also syncs your Wear OS screen with your phone's filter settings. You can control filtering from a "Wear OS Tile".
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
Twilight 14.25 Update
Fixed in widgetsSupport for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Read More
Twilight Features
Related Videos
Twilight Android's original blue light filter for better sleep
Twilight Presentation
Previous Versions
More
Variant
Arch
Version
DPI
606
February 9, 2026
Twilight: Blue light filter
14.25
(606)
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: d44baf579ce1ed71991bf308c67d571374f9c756
Base APK: com.urbandroid.lux.apk
Split APKs: config.ar, config.de, config.en, config.es, config.et, config.fi, config.fr, config.hdpi, config.hi, config.hu, config.in, config.it, config.ja, config.ko, config.ldpi, config.mdpi, config.ms, config.nl, config.pl, config.pt, config.ru, config.sk, config.sv, config.th, config.tr, config.tvdpi, config.uk, config.vi, config.xhdpi, config.xxhdpi, config.xxxhdpi, config.zh
Size: 10.15 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Android 7.0+
nodpi
606
February 9, 2026
Twilight: Blue light filter
14.25
(606)
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: 84871623de3828d4f042536339b3a3b5e211709e
Base APK: com.urbandroid.lux.apk
Split APKs: config.ar, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xhdpi, config.zh
Size: 7.2 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Android 7.0+
nodpi
606
February 10, 2026
Twilight: Blue light filter
14.25
(606)
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: 03cb9b0c4f59515196562c1903deacf2eb0b9b23
Base APK: com.urbandroid.lux.apk
Split APKs: config.ar, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxxhdpi, config.zh
Size: 7.21 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Android 7.0+
nodpi
606
February 11, 2026
Twilight: Blue light filter
14.25
(606)
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: 00cf96a4819edb1750dc184b3df423cd7f95308c
Base APK: com.urbandroid.lux.apk
Split APKs: config.ar, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxhdpi, config.zh
Size: 7.21 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Android 7.0+
nodpi
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: 9336e8e620fdcb4c6f20ab8b0e31145ef9f9cc3e
Size: 7.21 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: 6247c88595f27e58af7cf033b3ec367133040688
Size: 7.24 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Variant
Arch
Version
DPI
602
January 6, 2026
Twilight: Blue light filter
14.21
(602)
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: ebdb0088b836e3c5c1e0ff92a997c1c50fec4ed4
Base APK: com.urbandroid.lux.apk
Split APKs: config.ar, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xhdpi, config.zh
Size: 7.18 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Android 7.0+
nodpi
602
January 6, 2026
Twilight: Blue light filter
14.21
(602)
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: 3ca4e0c0a10b0f1326f8fd980dd66c69aacc6dbf
Base APK: com.urbandroid.lux.apk
Split APKs: config.ar, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxhdpi, config.zh
Size: 7.19 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Android 7.0+
nodpi
602
January 7, 2026
Twilight: Blue light filter
14.21
(602)
Requires Android: Android 7.0+
Screen DPI: nodpi
SHA1: fdad4c02647c2939f2e6d925f09348da4ea2eb0e
Base APK: com.urbandroid.lux.apk
Split APKs: config.ar, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxxhdpi, config.zh
Size: 7.19 MB
What's New:
Fixed in widgets
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Support for Philips HUE PRO bridge
Expressive redesign
Many new translations
Paper-like matte texture option
Bigger pause button
Latest API level target
New libraries
Android 7.0+
nodpi
More Information
Package Name:
Category:
Update Date:
2026-02-09
Latest Version:
14.25
Need Update:
Available on:
Requirements:
Android 7.0+
Report:
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