Blue Light Filter - Night Mode

Contains adsIn-app purchases
380K reviews
Content rating
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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.

● 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.

● 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

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

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
Jun 2, 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

359K reviews
July 10, 2023
Lovely experience so far! Easy to use! The lower the color temperature, the easier it is on the eyes and more relaxing btw if you don't understand the filters. They have a setting to set the intensity of the filters and another for how dim the lights are instead of just only always setting it on the max too! I like the notification bar for it as it helps me turn off and turn on the blue light filter easily. Great app, my time to get to sleep cut in half yesterday ✨️Has nearly no ads as well
33 people found this review helpful
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Sleepy Minion
June 16, 2023
As someone who used this since high school, this helped my sleep a lot. Especially stacking with my blue light blocker glasses, it makes them a powerful duo. You can choose how it intense it is, which is nice. The only problem I had with it was that it randomly doesn't work for some reason, so I had to reset my phone, but it is a very rare occurrence.
35 people found this review helpful
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May 7, 2023
I loved this app. It was perfect with the easy access on the notification bar. I could turn it on and off with the tap of the finger. You could customize the level of light. Not just blue light but other tints as well. So why 1 star? They did the thing that took all that good and threw it out the window. They put a button right on the screen that you can move around but not get rid of. That aweful little thing is always in the way. It makes me want to uninstall this app which I loved until now.
72 people found this review helpful
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