Light Meter Pro - Lux Measure
Study, Photo & Plants—No Subs
$2.99 · Designed for iPad. Not verified for macOS.
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixed some known issues and improved the user experience.
The developer, Guangzhou Ciyou Network Technology Co., Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Guangzhou Ciyou Network Technology Co., Ltd.
- Size
- 16.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 43 more
- English, Arabic, Bengali, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Oriya, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- ©Guangzhou Ciyou Network Technology Co.,Ltd.
