Blue Light Filter - Night Mode

Contains adsIn-app purchases
4.7
389K reviews
10M+
Downloads
Content rating
Everyone
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About this app

Eyes feel tired during night reading on the phone?

Have trouble in sleeping after long time watching phone screen?

That is due to blue light. Blue light from your phone and tablet screen is the visible light spectrum (380-550nm) for circadian regulation. According to the scientific studies, exposure to blue light imposes serious threats to retinal neurons and inhibits the secretion of melatonin, a hormone that influences circadian rhythms. It is proven that reducing blue light can greatly improve sleep.

Blue light filter is used to reduce blue light by adjusting the screen to natural color. Shifting your screen to night mode can relieve your eyes strain, and your eyes will feel at ease during night reading. Also blue light filter will protect your eyes and help you sleep easily.

Features:
● Reduce blue light
● Adjustable filter intensity
● Save power
● Very easy to use
● Built-in screen dimmer
● Eye protector from screen light

Reduce Blue Light
The screen filter can change your screen into natural color, so it can reduce the blue light which will affect your sleep.

Screen Filter Intensity
By sliding the button, you can easily adjust the filter intensity to soften the screen light.

Save Power
Practice shows it can greatly save power because of reducing screen blue light.

Easy to Use
Handy buttons and auto timer will help you turn on and turn off the app in one second. Very useful app for eye care.

Screen Dimmer
You can adjust your screen brightness accordingly. Get better reading experience.

Eye Protector From Screen Light
Screen shift to night mode to protect your eyes and relieve your eyes in no time.

Tips:
● Before installing other app, please turn off or pause this app to enable installation.
● When taking screenshots, please turn off or pause this app in case screenshots use the app effect.

Why the app needs Accessibility permission
- Since Android 12, only with this permission our app can function properly.
- The app uses this permission to filter your screen by adjusting the brightness and color temperature of the screen.
- Therefore, you can correctly use your screen with Blue Light Filter on and protect your eyes, without being blocked by the filter layer.
- Our app will not use this permission for any other purpose or read your screen content.

Relevant Scientific Studies

Effects of blue lights technology
https://en.wikipedia.org/wiki/Effects_of_blue_lights_technology

High Sensitivity of the Human Circadian Melatonin Rhythm to Resetting by Short Wavelength Light
Steven W. Lockley, George C. Brainard, Charles A. Czeisler, 2003

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

AMBER LENSES TO BLOCK BLUE LIGHT AND IMPROVE SLEEP: A RANDOMIZED TRIAL
Chronobiology International, 26(8): 1602–1612, (2009)

Anti Glare Screen Filter
Still looking for anti glare screen filter? This is an useful anti glare screen filter you need to try. Care your eyes with our anti glare screen filter.
Updated on
Nov 10, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
367K reviews
reid parsons
March 4, 2024
Use to love this app but now it has a lot of problems with either turning on or staying off for some reason. And If the notification bar gets turned off at all the app seems to stop working completely not matter how many times I reset it, it won't let me use the blue light after that. Used this for a couple years but will be looking for a new app now
20 people found this review helpful
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Kate
February 14, 2024
I like that this app gives you lots of options to customize your filter and explains each level of intensity. I use it every night and have seen a big difference in my sleep! The only complaint I have is that sometimes it turns itself off during the nighI. I also wish there was a widget option or a way to put a button in quick settings to turn it on and off without having to open the app every time. It gives accessibility integration options but that did nothing useful on my Galaxy s21+.
13 people found this review helpful
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Музайяна Ахмаджонова
January 15, 2024
Have been using for years, works excellent, has exactly necessary functions, not overburdened with unnecessary and unrelated functions, thus it's easy to use. Has necessary widgets which makes switching the app in and off easy. Does excellent job if you want to decrease the brightness way below what your default phone settings allow. Pleasant design.
15 people found this review helpful
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