Kelvy - White Balance Meter

Measure white balance fast with Kelvy. Get live Kelvin, tint, camera profile guidance, and saved scout captures for cleaner color decisions on set.

Kelvy turns your iPhone into a professional color temperature meter. Point your camera at any light source and instantly see the Kelvin reading, tint value, and the exact white balance setting for your camera.

WHAT KELVY DOES

Kelvy reads the color temperature of ambient light in real time using your iPhone camera. It gives you an accurate Kelvin measurement, tells you the nearest white balance preset (Daylight, Tungsten, Fluorescent, etc.), and recommends the exact value to dial into your camera.

KEY FEATURES

• Live Kelvin readout with real-time color temperature graph
• Recommended camera white balance setting for every reading
• CTO/CTB gel filter recommendations for matching mixed lighting
• Tint measurement for green/magenta shift detection
• Tap to copy Kelvin value to clipboard
• Calibration mode for maximum accuracy with a gray card or white surface
• Branded photo export with your reading overlay
• Reading history with thumbnails for quick reference

BUILT FOR FILMMAKERS AND PHOTOGRAPHERS

Whether you're scouting a location, setting up lights on set, or quickly checking the color temperature of a practical, Kelvy gives you the numbers you need without carrying extra gear. It's the light meter that's always in your pocket.

Kelvy Pro unlocks unlimited readings. Free users get 3 readings to try it out.

SUBSCRIPTION INFO

Kelvy Pro is available as an auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscriptions by going to your account settings in the App Store after purchase.

Privacy Policy: https://mikecerdeiros.github.io/kelvy-privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/