White Balance: Kelvin Meter

White Balance measures the colour temperature of your light. Point your phone at a grey or white card under the light, fill the square, and read the Kelvin live. Most phone cameras correct a grey card towards neutral before an app ever sees it. White Balance fixes the camera's white balance, and on phones that share RAW sensor data it reads the card before any correction at all, using the phone maker's own colour calibration. So the number follows your light, not the phone. Features - Live Kelvin or mired reading from a grey or white card - Nearest camera preset: Tungsten, Fluorescent, Daylight, Cloudy or Shade - Hold a reading with one tap - Warnings when the card is too dark, clipping or not filling the square - Shows how each reading was measured: RAW sensor, fixed white balance or auto white balance - Keeps the screen on while you work - Works on your phone, no account Pro A one-time Pro unlock adds: - Gel tips: CTO and CTB, including stacks beyond a full gel, and where the light will land - Green and magenta tint (Duv) with Plus Green and Minus Green suggestions - Compare two lights, such as a window and an LED, and get the gel that matches one to the other - Save and name readings - Calibration against one or two lights you know - Clean reading cards for your notes Good to know Phones differ, so for the best numbers calibrate once against a light with a known rating, and check with a test shot. A few phones do not let apps fix white balance. On those the reading is rough, and the app tells you so. Pricing Free: the live Kelvin reading, presets and warnings. White Balance Pro is a one-time lifetime unlock. No subscription.

White Balance now measures your light. It fixes the camera white balance, and reads RAW sensor data on phones that allow it, so the reading follows the light, not the phone's own correction. New: a live reading with Hold, warnings for dark or clipped cards, and Kelvin or mired units. Pro adds gel stacks with where the light will land, green and magenta tips, Compare two lights, saved readings and two light calibration. Please calibrate again after updating.