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f.lux &
alternatives
Research-backed insights on blue light, screen flicker, and circadian health.
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f.lux & alternatives
f.lux for Mac: How to Download It, and What Happened to It
f.lux still installs on a Mac, and its shipping binary is dated 17 May 2023. Where to download it, how to set it up, and how to check that date yourself.
9 min read
f.lux & alternatives
Sundown vs Iris for Mac (2026): What Happened to Iris and What to Use Now
Iris pioneered deep filtering and PWM protection on the Mac. Here is how Sundown compares on depth, flicker, dithering and the upkeep we could verify.
9 min readf.lux & alternatives
Best f.lux Alternatives for Mac and Windows (2026)
The best f.lux alternatives for Mac and Windows, compared on price, warmest setting, dimming and scheduling, plus why f.lux stops on M5 Pro and Max Macs.
14 min read
f.lux & alternatives
Night Shift vs f.lux on Mac (2026): Full Comparison
Night Shift stops at a warm white and f.lux at a deep orange. Here is how the two free options compare on depth, scheduling, privacy, and macOS support.
8 min read