Kelvin vs PhoMeter

Kelvin reads your camera's white balance sensor to measure color temperature in real time — no gray cards, no guesswork. Unlike apps that sample pixels from a photo, Kelvin taps into your device's auto white balance hardware for fast, accurate CCT readings from 2000K to 10000K. PRO FEATURES - Gel Calculator — instantly find the right CTO/CTB gel to shift between any two color temperatures - Color History — log and compare readings across locations - White Balance Lock — freeze the sensor for consistent measurement BUILT FOR SET Designed for gaffers, DPs, and photographers who need to match light sources without carrying a dedicated meter. Reads the sensor, not the screen. Privacy Policy: https://flutterwithchris.github.io/kelvin-meter-legal/privacy.html Terms of Service: https://flutterwithchris.github.io/kelvin-meter-legal/terms.html

PhoMeter is a simple white balance meter for photographers, videographers, and creators. Use your iPhone camera to estimate the color temperature of your lighting in Kelvin and get a practical Tint indication for green/magenta correction. PhoMeter helps you choose a better white balance setting before shooting photos or videos. Point your camera toward a neutral surface or grey card, wait for the reading to stabilize, then lock and save the measurement. Main features: Live color temperature reading in Kelvin Tint indication for green/magenta white balance correction Stability indicator for more reliable readings Lock measurement before saving Add an optional note to each saved reading Measurement history Clean and fast interface for on-set use Useful for: Photo shoots Video productions Interviews Product photography Studio lighting setup LED light comparison Checking mixed lighting environments PhoMeter is designed as a practical white balance reference tool. It is not a professional spectrometer and does not measure CRI, TLCI, SSI, or full light spectrum data. For best results, measure using a neutral grey card or matte white reference under the light you want to evaluate.