Night Shift - Bluelight Filter for Good Sleep
Features
√ Night filter shifts your screen to natural warm light
√ Help you gain one more hour of sleep
√ Protect your eyes for 24 hours with the auto-timer
√ Help maintain healthy eye habits
√ Save your battery by 15%
√ Get better sleep by reducing blue light
√ Ease eye fatigue with just one tap
√ Many colors to choose from
WHAT IS BLUE LIGHT?
Blue light is the visible light spectrum (380-550nm) for circadian regulation. It contains more energy than other visible light types, so it may damage your retinal cells.
WHY SHOULD I 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 night shift function, your vision health will be greatly improved.
CAN BLUE LIGHT FILTER IMPROVE MY SLEEP?
Yes. Natural exposure to blue light during the daylight hours boosts people's energy, alertness and mood; however, it will disturb your sleep at night.(from wiki) Blue light filter can effectively reduce blue light from the screen and help you get better sleep.
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
Category : Health & Fitness
Reviews (29)
I installed this app for ten seconds and had to restart my phone and immediately uninstall it. The second I turned the filter on I could not access my other apps. Everything but bottom part where the buttons are did not work. Horrendous.
Does not work with Android 12. My navigation bar is the only part of my screen that still works after I turn on this app. I can switch apps (by tapping the recents button twice) but I can't choose which app by scrolling through the apps. The screen is just frozen as soon as this app is on top.
It's my first blue light filter app. I'm used to the ones built into the phones. This does a pretty close second. The only thing is the black screen turns brown once the filter is on. Which is more light.
I have tried multiple brightness managers, some had more features, or cooler design, but this app is just what I need. Simple, pretty clean, with the right functionalities. Below zero brightness and a blue filter - perfect combination.
Of all the other blue light filter apps, this one is the best. No matter what others promise, whatever nonsensical advertising they try, whatever cutesy names and ridiculous avatars and graphics; the fact remains that simplicity always wins. This is why this app deserves the #1 spot. If the makers of the app read this, I am truly grateful this exists. My only wish: rip the ads from this app and stand firm on your own. You don't need them. Much love and respect. 🤜🤛
Once you turn on the Night Filter, the touch screen is unresponsive. Please fix this for a better experience.
Been trying to find a dim screen app since I changed my phone. None works. This app also is not able to dim the notification bar, panel and lock screen. I'm using Android 8.0.0 on Samsung J6.
Very good dimming ability, but the app turns off by itself whenever I switch off the phone screen. Pretty poor.
It is not possible to utilise other apps while the night light is on with Android version 12.0. It was necessary for me to disable it via notifications.
BEWARE ALL NIGHT MODE / COLOR CHANGING APPS CAUSE PROBLEMS WITH ALLOWING NEW APPS TO ACCESS PERMISSIONS, SO IF THAT HAPPENS YOU JUST NEED TO BRIEFLY UN-INSTALL THIS APP, ALLOW THE NEW APP AND THEN RE-INSTALL THIS APP..... it's not just this app, it's all of these types of apps. I spent a very long time testing many. Even asking Google about the permissions issue says the same thing, so i just remove and put it back app bcoz its the easiest way & this is the best, nicest and basic one of all imo.
I have had to remove this app as my phone was overheating. My phone is now messed up as far as light is concerned. 🤦🤦
Background process is annoying. Taking ram and battery usage. Can't stop the app totally. Ads are everywhere
I was reading and all of the sudden It shuts off with no warning and i was blinded with a bright light. I thought I did something wrong so I tried again and the same thing happened. Uninstalled.
This app is great. I like the black setting best, but you can use orange and stuff to reduce the blue light.
very excellently effective. to the developers: 5*s for sure. if i could have even more color and brightness control, that would be even more effectively excellent! thank you!!!
I can't understand When I low my tab brightness with this app then try to enter in other apps this app automatically turns off. I need app which can help me to reduce my mobile brightness and I can use other apps as well
Good to lower Blue-light. I turn-it-ON always. But, Sometimes it crashes un-expectedly(may be because my device has only 1.5GB RAM).
I spend alot of hours reading on my tablet. Late into the nite & early morning. Recently my brother explained about blue light. Since he installed your app on my old tablet + the one I just purchased.. my eyes aren't as tired, painful or as worn thanks 2 this app.
this is perfect, its help protect your eye from the brightness of your phone screen light, try it you call me thank me for it. i love it for real and i know you can love it too.
Best screen darkener so far. Consistent. No probs. Doesn't change on its own like many others.
Doesn't work with Android 12. When enabled/running, the touch screen becomes unusable.
Terrible. Constantly turning off, after i turn it on, it turns off after 1-2 hrs. Do not use it.
Worst one out there. I expect the app to automatically keep running after I "wake up" my tablet. Very buggy on Android.
Good app. this app gives us low brightness in many colours. I think it is better app that other low- brightness apps. i like so much this app. i gives it five star.
This app is good, but I have to manually activate it at night (the timer is set for 7pm, but never comes on).
Great App. Simple to use. Totally needed on my Teclast P20HD which does have serious brightness issues - as in it cannot be lowered. This app solves this. Thank U Devs!
I wish I knew about it before. Nice application, had helped me a lot as due to blue light I was having very disturb sleep and eyes used to hurt a lot.
Uff....its amazing incredible and yes it is so accurate. Finaly this one Works with my android6.
Great app. Easy to use. On/Off are in the notification drop down. I can customize color filters and set the time to auto turn on and off if I want. A few apps won't respond unless I turn it off first and then turn it back on after.