Light Meter Pro
Study, Photo & Plant Light
$2.99 · Designed for iPad. Not verified for macOS.
Light Meter Pro turns your iPhone or iPad camera into a practical light reference for everyday decisions.
Check the light falling on a study desk or reading page, compare photographic exposure, and estimate the light reaching indoor plants. The app estimates lux, colour temperature, EV100, PPFD and DLI, then gives guidance for the selected use.
Key features:
• Study and reading illuminance guidance
• Photography exposure reference with shutter speed, ISO, aperture and EV100
• Plant-light estimates including PPFD, DLI and daily light hours
• Front-camera incident-light and rear-camera reflected-light modes
• Calibration against a trusted lux meter
• On-device processing, with no account, advertising SDK, photo storage or cloud upload
For study and plants, place the device at the measurement position with the screen facing up to estimate incident light. For photography, point the rear camera at the subject to estimate reflected light.
Important: A phone camera is not a certified lux meter, colour meter, spectrometer, PAR quantum sensor, flicker meter or professional exposure meter. Readings are camera estimates or theoretical calculations. For compliance inspections, medical decisions, commercial testing, critical photography or precision growing, use calibrated professional instruments.
Ratings & Reviews
- This app has not 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
- Provider
- 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.
