Light Meter Pro vs Luxdeck

Light Meter Pro turns your iPhone or iPad camera into an everyday light reference tool. Measure light levels on desks, reading pages, screen environments, as well as photography exposure and plant grow lights. The app estimates Lux, Color Temperature, EV100, PPFD, and DLI, offering clear adjustment suggestions tailored to your current scenario. Key Features: - Study & Reading Light Check: Evaluates lighting conditions for desks, books, and screen environments. - Photography Exposure Reference: Supports shutter speed, ISO, aperture, EV100, and suggested parameters. - Plant Lighting Estimation: Covers canopy illuminance, PPFD, DLI, and daily light hours. - Dual Measurement Modes: Supports both front-facing incident light and rear-facing reflected light measurement. - Custom Calibration: Allows you to adjust metering coefficients by comparing readings with a professional lux meter. - 100% Privacy-Focused: All processing is done locally on your device. No accounts required, no cloud uploads, and photos are never saved. Ideal Use Cases: - Checking ambient light to ensure a healthy environment for children’s homework, reading, or screen time. - Quickly referencing exposure parameters and EV differences before a photoshoot. - Determining if indoor plants need supplementary grow lights or a change of location. - Comparing lighting changes across different lamps, locations, and times of day. Important Disclaimer: Smartphone cameras are not metrologically certified lux meters, color temperature meters, spectrometers, PAR sensors, or professional photographic light meters. Light Meter Pro is designed for quick comparisons, home lighting adjustments, and pre-shoot estimates. For lighting compliance inspections, medical assessments, commercial testing, or precision agriculture, please use calibrated professional instruments.

Luxdeck turns your iPhone camera into a light meter. Point it at a lamp, a window, or a grow light and read four things at once: illuminance in lux (or foot-candles), PPFD and DLI for plants, and the color temperature of the light in kelvin. Most light meter apps make you buy or clip on a diffuser dome before the numbers mean anything. Luxdeck reads straight from the camera, so you can pull it out and measure whenever a question comes up: is this corner bright enough for the fern, how warm is this bulb, is the desk lit well enough to work. WHAT IT MEASURES Lux and foot-candles for everyday lighting. PPFD, the light plants actually use for photosynthesis. DLI, the total light a spot receives over a day. Color temperature in kelvin, from warm tungsten to cool daylight, with a warm-to-cool scale so you can read it at a glance. BUILT TO BE HONEST Every reading carries a small badge that tells you how confident the measurement is and whether the app has been tuned for your specific phone. No hidden fudging, no pretending a phone camera is a lab sensor. WORKS ANYWHERE, KEEPS TO ITSELF Everything runs on the phone. There is no account to create, no network call, and no data leaves the device. The camera is used only to read light in the moment; frames are never stored or sent. FOR GROWERS AND EVERYONE ELSE If you keep plants, Luxdeck reads PPFD and DLI so you can match a spot to what a plant needs. If you shoot photos, set up a room, or just want to know how bright and how warm a light is, the same numbers are there without any gardening jargon in the way. Free to use. A Premium upgrade unlocks unlimited saved history and CSV export for people who log readings over time. Terms of Use (EULA): https://www.luxdeckapp.com/terms