Purple Owl: Blue Light Filter
Free App
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About Purple Owl: Blue Light Filter
Are you having trouble falling asleep? Are your kids hyperactive when playing with the tablet before bed time? Does your eyes feel tired during night time reading?
Are you using your smartphone or tablet in the late evening? Purple owl may be the best solution for you!
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 color temperature (500K-3500K)
● Adjustable filter intensity level
● Adjustable dim level
● Save power
● Very easy to use
● Built-in screen dimmer and brightness function
● Eye protector from screen light
● Timer
● Multiple Filters (Reading, Studying etc)
● Night Theme (Dark Theme)
Blue light is bad for your health, learn more:
www.bluelightexposed.com
https://en.wikipedia.org/wiki/High-energy_visible_light
www.health.harvard.edu/staying-healthy/blue-light-has-a-dark-side
Are you using your smartphone or tablet in the late evening? Purple owl may be the best solution for you!
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 color temperature (500K-3500K)
● Adjustable filter intensity level
● Adjustable dim level
● Save power
● Very easy to use
● Built-in screen dimmer and brightness function
● Eye protector from screen light
● Timer
● Multiple Filters (Reading, Studying etc)
● Night Theme (Dark Theme)
Blue light is bad for your health, learn more:
www.bluelightexposed.com
https://en.wikipedia.org/wiki/High-energy_visible_light
www.health.harvard.edu/staying-healthy/blue-light-has-a-dark-side
All Application Badges
Free
downl.
downl.
Android
3.2+
3.2+
Bug
buster
buster
Android app
App History & Updates
What's Changed
*Fixed the crash issue (not opening)
* Lower brightness applies per filter
* Custom (unsaved) filter remembers last used values
* Switch to custom filter in the notification
* Basic fade in support, so the automatic transitions are smooth
* Bug fixed where sunrise and sunset times wouldn't be updated
* New translations thanks to all the contributors
* The notification is no longer automatically dismissed if you turn the filter off
*Fixed the crash issue (not opening)
* Lower brightness applies per filter
* Custom (unsaved) filter remembers last used values
* Switch to custom filter in the notification
* Basic fade in support, so the automatic transitions are smooth
* Bug fixed where sunrise and sunset times wouldn't be updated
* New translations thanks to all the contributors
* The notification is no longer automatically dismissed if you turn the filter off
What are users saying about Purple Owl: Blue Light Filter
V
by V####:
by V####:
google thinks this is a weight loss app. may I ask why?
U
by U####:
by U####:
Really gd app...anyone dwnlod it with no tentions.....
U
by U####:
by U####:
Better than the rest would recommend to friends because of how u can change the intensity and it has a timer to auto turn on so I don't have to do it.also has a feature to turn on and off at sunrise and sunset by determining your location it can tell that without u needing to set it
B
by B####:
by B####:
Great app, now there's so much less strain on my eyes when looking at my phone at night. I left a donation because If this were a paid app I'd of bought it on the fly! Thanks :)
L
by L####:
by L####:
Best! Interface is short, clean and easy to navigate. Easy to turn off too. Love looking at my phone at 3 in the morning without being blinded ❤
W
by W####:
by W####:
Smoothest and clearest on the web! And it filters more blue light. Can read easily with no strain! Thanx Purple Cow.
U
by U####:
by U####:
There are hundreds if blue light filter apps out there, but purple owl stood to be one of the best. Great job guys!
U
by U####:
by U####:
Great app! Simple and handy. If only could remove the filter while taking screenshots.
Y
by Y####:
by Y####:
So very good and easy to operate. Better than the stock filter on my S7. Much appreciated
U
by U####:
by U####:
Loved this app! Been looking for Blue light filtering app but in smaller size. This app is perfect!!
G
by G####:
by G####:
Very easy to use. Help me fall asleep at night to get to school in the morning.
U
by U####:
by U####:
Just awesome app yaar.. others app to loose in front of that
U
by U####:
by U####:
Excellent app,,,, would recommend
U
by U####:
by U####:
What a excellent app love it
O
by O####:
by O####:
Excellent Idea and App.
U
by U####:
by U####:
very good
U
by U####:
by U####:
Powerful filter
G
by G####:
by G####:
Great app
U
by U####:
by U####:
Nice
U
by U####:
by U####:
One of the best night filters out there. Helps me relax my eyes at night. Great work guys.
D
by D####:
by D####:
Better than most blue light filters out there. Would recommend 5/5.
Q
by Q####:
by Q####:
Good job..
U
by U####:
by U####:
Good concept
U
by U####:
by U####:
Nice apps
V
by V####:
by V####:
Good
by X####:
I love this app it's great and works well yet my only problem in the recolored owl from the game Animal Jam. I suggest maybe making your own or finding some free owl tablet somewhere. This is mainly just for legal purposes.