Iris

Iris is a software for eye protection, health and productivity.

The 2 most popular features of Iris which probably brought you here are:
– You can decrease the amount of blue light emitted from the screen
– Control the brightness without PWM flicker

Iris works automatically and detects if it's day or night,based on that it will change your screen color and brightness. You can also open the control panel to set different modes and types, there are 3 modes,they are "Automatic","Manual","Paused".there are 9 types,they are "Health","Sleep","Reading"," Programming"," Biohacker", "Sunglasses"," Dark"," Movie", "Overlay", you can choose the different combinations to fit your needs.

Iris has a 7-day free trial, and you can invite friends to get more time for free. you can also buy a lifetime license with only $15. This is a good software for eye protection,it's convenient ,useful and productive.