Iris
Desktop app that changes screen color temperature and lowers brightness in software, with presets for day and night use.
The maker's own words say it acts on PWM flicker, brightness and blue light.
- Runs on
- Mac, Windows
- Price
- US$1.99, per month, 1 PC. Trial: 7 days. Source: iristech.co
- Status
- Operating
- Website
- iristech.co
- Checked
- 28 Sep 2026
What the maker says, in four columns
Lit: the maker's own words say the app acts on it. Outlined: mentioned, not claimed. Blank: not stated.
PWM flickerSays the app acts on this
“Iris optimizes screen pulsations by controlling the brightness without PWM.”Source: iristech.co
Quote shortened here; the maker's health wording is left out.
Dithering
Not stated by the maker.
BrightnessSays the app acts on this
“Your second option is to use Iris which uses the video card to reduce the luminance of the screen.”Source: iristech.co
Blue lightSays the app acts on this
“Iris will gradually regulate blue light day and night.”Source: iristech.co
Other apps that say they act on PWM flicker: BetterDisplay, CareUEyes, CircadianShield
Other apps that say they act on brightness: BetterDisplay, CareUEyes, CircadianShield, ColorControl, DisplayBuddy, Lunar, MonitorControl, Monitorian, PangoBright, Twinkle Tray
Other apps that say they act on blue light: CareUEyes, CircadianShield, Apple Night Shift, f.lux, Windows Night light