Blue Light Filter

Have your eyes feel tired during night reading on the phone screen after long time?

Blue light from the phone is the root cause can harm your retinal neurons, make you can not have a good night's sleep.

This application calculates color temperature in case of low light from 1800K to 3400K with 5 modes (Dark night, Candle light, Dawn, Incandescent lamp, Fluorescent lamp) to reduce blue light appropriately by adding the overlay filter.
You can set opacity and screen dim to darken screen and ensure your eyes always feel comfortable.

Features :
- Reduce blue light : Help you sleep easily.
- Can adjust filter opacity & screen dim : To soften the screen light, ensure to protect your eyes.
- Save Battery on your device
- Set schedule to turn on and turn off Night Mode daily (for example : from 22:00 p.m to 7:00 a.m of the next day).

Permission : (For version Android 6.0 or later)
- To apply overlay filter, you should turn on drawing over other app permission following the first tutorial settings.