About this app

Have trouble falling asleep?
Want to reduce eye strain when using smartphones in the dark?
Blue Light app may be the solution for you!

With "BlueLight" you can block the blue light and adjust brightness of the screen in dark places so that you can keep your eyes healthy and have a good night’s sleep.

Blue light is a range of the high-energy visible light spectrum, defined as having a wavelength between 400-495 nm, has a negative impact on sleep as it disturbs the production of melatonin, an essential sleep hormone. Other harmful effects of using the smartphone without blue light filter are: eye strain, headache, insomnia or sleeplessness, lack of quality sleep, etc.

Night mode adjusts the colors of your display to the warmer end of the spectrum—making the display easier on your eyes. Also here are even more options - selecting the filter color according to color temperature, shortcuts on the home screen, a notification widget and an activation time schedule.

You will find "Blue Light" useful when
- to block the harmful blue light emitted by device screens
- to dim the brightness that interferes with your sleep
- the built-in blue light filter in OS is not enough.

Main features Blue Light Filter:

Night Mode - Activate night mode with a simple tap.
Filter Intensity - Allow manually set the intensity of the filter for your preference.
Screen Dimmer - Choose a comfortable brightness level of the screen.
Easy to use - Very light app, necessary handy controls.

Permissions details
- Receive data from the internet: used for serving ads
- Full network access: used for serving ads
- Run at startup: used to run Blue Filter automatically when the device restarts
- Draw over other apps: required to overlay blue light filter
- Prevent the device from sleeping: required to run night mode at the scheduled time

Note: due to new security rules in Android 8.1+, some parts of the screen cannot be covered by filters, like notification bar or status bar. Appreciate for your understanding.

App Permissions

Allows applications to open network sockets.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Allows an application to read or write the system settings.
Allows an application to write to external storage.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows an application to read from external storage.
Allows applications to access information about networks.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.