LUX Meter - Light Meter

Illuminance for photo & plants

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

LUX Meter is a private light meter for quick, practical illuminance checks with your iPhone camera. Measure ambient light in lux or foot-candles, compare rooms and work areas, check desk lighting, find brighter spots for plants, and see whether a space is too dim, comfortable, or bright enough for detailed tasks. Pick a target for your task — reading, office, kitchen, plants and more — and get instant "too dim / good / too bright" feedback as you move the phone. Simple and trustworthy: no account, no ads, no tracking, no photo storage. Features: - Lux and foot-candle readings - Lighting target presets with live in-range feedback - Live brightness scale with plain-language guidance - Hold mode to freeze a measurement - Session min, average and max - Calibration against one trusted lux value - Practical guide with common light levels - Paper-diffuser guidance for incident light - Private on-device camera metering Important: LUX Meter estimates illuminance from camera exposure. Great for quick checks, comparisons, and plant or room-light decisions. For regulated, safety-critical, or professional compliance measurements, use a certified lux meter.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

A cleaner main screen that fits every iPhone edge to edge, target presets now show their lux range, and the in-range check (Too dim / Good / Too bright) appears right on the target bar.

Version 1.1.3

The developer, Yannick Binay, 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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Yannick Binay
    Size
    • 2.1 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English and 8 more
    • English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
    Age Rating
    4+
    Copyright
    • © 2026 Yannick Studio
  • Developer Website
  • Privacy Policy

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