[What is Blue Light?]
Blue light is a blue light source with strong energy in the middle of the visible light.
Even with the same electronic device the blue light from smartphones is twice as harmful as a laptop monitor and five times as much as a television.

[Why do I need a blue light filter?]
Continuous exposure to harmful light without the use of a blue light charger filter increases the likelihood of a variety of eye diseases (dry eye syndrome poor visual acuity). In particular if exposed before sleeping the brain recognizes the current time as daytime and it can adversely affect other than eye health such as insomnia.


[Features of the app]
- Trusted apps: require minimal privileges to protect your privacy
- Fast battery-free with only essential functions

[Features of the app]
- Schedule can be executed according to the specified time
- It has a function to run automatically when the phone is turned on
- Various filter colors and free blocking rate control
- In the status bar you can adjust the blocking rate and terminate the filter