Blue Light Filter: Night light

Blue Light Filter: Night light

Eyes feel tired during night reading or you having trouble falling asleep?

4.32 HEALTH AND FITNESS
Blue Light Filter: Night light
Blue Light Filter: Night light Blue Light Filter: Night light Blue Light Filter: Night light

Are you using your smartphone or tablet in the late evening?
Blue Light Filter may be an ideal solution for you!

What is Blue Light Filter?
An app that effectively reduces the amount of blue light emitted from electronic devices by overlaying a translucent filter.
Great for those who use their devices all day long and are feeling fatigued.
It keeps the eyes healthy and helps users achieve comfortable sleep.
Besides the blue light filter, screen dim feature will reduce the screen brightness to a minimum level as night mode.

Why you should use Blue Light Filter?
Research shows that exposure to blue light imposes serious threats to retinal neurons, causes eye strain, dry eyes, and inhibits the secretion of melatonin, a hormone that influences circadian rhythms. With our filter function, your vision health will be greatly improved.
It is recommended to turn on this app when you are reading or playing games, especially in a dark room.

Features:
- Adjustable color temperature
- Automatic filter intensity (based on readings from the light sensor)
- Schedule (start and stop time)
- Brightness setup (manual and adaptive)
- Caffeine mode

Why Blue Light Filter uses AccessibilityServices API
Enabling this type of service expands the range of capabilities so screen filter can cover system views such as:
- Status bar
- Navigation bar
- Lock screen

And remove overlay limitations:
- Not allowing app installation

* Since Android 12, accessibility service is needed in order to enable screen filter.

Enabling this won't allow Blue Light Filter to access your screen content

Help translating:
https://www.paget96projects.com/help-translating-apps.html

Relevant Scientific studies
1. Steven W. Lockley, George C. Brainard, Charles A. Czeisler. “High Sensitivity of the Human Circadian Melatonin Rhythm to Resetting by Short Wavelength Light”. J Clin Endocrinol Metab. 2003 Sep;88(9):4502-5.

2. Burkhart K, Phelps JR. “AMBER LENSES TO BLOCK BLUE LIGHT AND IMPROVE SLEEP: A RANDOMIZED TRIAL”. Chronobiol Int. 2009 Dec;26(8):1602-12.

3. ----“Effects of blue lights technology”. https://en.wikipedia.org/wiki/Effects_of_blue_lights_technology

4. “How exposure to blue light affects your brain and body”. Nature Neuroscience; Harvard Health Publications; ACS, Sleep Med Rev, American Macular Degeneration Foundation; European Society of Cataract and Refractive Surgeons; JAMA Neurology


About this version (1.2)

v1.2 - Added Help section (on toolbar) - Added about section - Added link to help translating - Added changelog - Fixed glitch in UI - Updated theme - Added collapsing toolbar - Added back payment and recommended section - Added check when billing client is not ready - Updated dependencies - Updated translation

Other versions

1.1 released on 20 March 2022 (108 days ago)
1.0.4 released on 04 January 2022 (183 days ago)
1.0.3.7 released on 23 December 2021 (195 days ago)
1.0.3.6 released on 02 December 2021 (216 days ago)
1.0.3.5 released on 25 November 2021 (223 days ago)
1.0.3.4 released on 18 November 2021 (230 days ago)
1.0.3.2 released on 04 November 2021 (244 days ago)

Details and Recent Ratings

Size: 0 MB
Version: 1.2 by Paget96
Updated: 07 May 2022 (60 days ago)
Released: 04 November 2021
Installations: more than 10 000
Blue Light Filter: Night light
5 Stars: 116
4 Stars: 14
3 Stars: 7
2 Stars: 7
1 Star: 14

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