FlickerSense – iPhone-based light flicker and quality analyzer

Summary: FlickerSense uses an iPhone’s 240 FPS camera and FFT analysis to detect invisible light flicker between 50 and 120 Hz, measuring color temperature and brightness. It helps identify lighting issues linked to headaches, eye strain, and focus problems without extra hardware.

What it does

It captures high-speed video to analyze light flicker from LEDs and fluorescents, providing measurements of flicker frequency, color temperature in Kelvin, and brightness in lux.

Who it's for

Designed for people with light sensitivity, ADHD, epilepsy, and those optimizing their lighting environment.

Why it matters

It reveals invisible flicker that can cause neurological and visual discomfort, enabling users to improve their lighting conditions.