An app that reduces the amount of blue light emitted by overlaying a translucent filter.
It keeps the eyes healthy by reducing the amount of blue light that reaches them and helps users achieve comfortable sleep.

A simple design with functions that are easy to understand and use.


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Recommended for people who:
- Want to keep the eyes healthy.
- Want to set the filter ON / OFF for each apps.
- Want to change filter settings from the status bar quickly.
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Features

►Filter settings
Can configure the filter color or intensity.

►Notification settings
Control the filter settings easily from the notification bar.

►Per App filter settings
Can set the filter ON / OFF for each apps.

►Timer settings
Turn filter ON / OFF automatically every day at the set time.

►Widget
Turn filter ON / OFF from widget.


This is a free version that allows you to check the app's operations and functions.
It will expire 2 days after installation. 

Pro Version
https://play.google.com/store/apps/details?id=jp.snowlife01.android.bluelightfilterpro


This app uses accessibility service.
This is used to detect when an app is launched or closed and allows you to change the filter actions for each app.
This information is not stored or shared.


【For OPPO users】
This app needs to run a service in the background to detect which app has started.
OPPO devices require special settings to operate app services in the background due to their unique specifications. (If you do not do this, services running in the background will be forcibly terminated, and the app will not operate properly.)
Please drag this app a little down from the recent apps history and lock it.
If you do not know how to set, please search for "OPPO task lock".

Blue Light Filter App.
Best app for blue light reduction.