217+ iOS apps curated and reviewed
The best lux light meter free apps on iPhone average 4.5★ across 217+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
Measure light intensity and color temperature for photography, plant care, and workspace optimization. Offers real-time readings, shooting recommendations, and manual control for precise lighting adjustments.
Transform your smartphone into a professional light meter. Measure illuminance and color temperature with scientifically validated accuracy, trusted by professionals. Requires a simple diffuser for precise readings.
Measure light intensity in lux and foot candles with this 2-in-1 meter. Optimize photography settings, adjust indoor lighting, or prevent eye strain with professional-quality readings directly from your smartphone.
This app provides accurate and easy-to-use light measurements in lux and foot candles. It's ideal for photographers, plant owners, and anyone needing to assess ambient light levels in various spaces. Features include real-time color temperature measurement and calculation of the daily light integral.
Measure ambient light levels in Lux using your iPhone's camera. Optimize sleep quality by understanding light exposure throughout the day and night.
This app acts as a professional-grade light meter for plants, measuring PAR, PPFD, DLI, and more using your device's camera. It helps optimize plant lighting by providing accurate readings and in-app guides, with optional advanced features available through purchase.
This app provides precise light measurements in lux and foot candles, along with real-time color temperature readings. It offers shooting value recommendations and allows manual adjustment of camera settings for photographers, plant enthusiasts, and workspace optimization.
Accurately measure ambient light levels in Lux or Foot Candles using your phone's camera. This tool is ideal for photography, comparing light sources, or indoor gardening. It's designed for ease of use and provides precise readings.
This app measures light intensity in lux and provides real-time exposure suggestions for photography. It offers customizable settings for shutter speed, aperture, and ISO, with options for both front and back cameras. It's designed for personal use to optimize lighting and capture better photos.
Measure ambient light levels in lux or foot-candles instantly. Useful for photography, plant care, or verifying brightness for various tasks. Offers advanced features like color temperature and measurement history for premium users.
This app acts as a portable light meter for photographers. It helps you understand correct photography settings and experiment with shutter speed, aperture, and ISO in real time. Save snapshots with parameters and geolocation, and measure color temperature.
This app functions as a precise and user-friendly light meter using your phone's built-in sensors. It measures illuminance, color temperature, PPFD/PAR, DLI, and luminous flux in real-time. It also includes a calculator for various illumination parameters and allows sharing or saving of measurements.
This app functions as a standalone reflective light meter or pairs with hardware for professional flash and color temperature measurements. It offers various modes for photography and videography, storing measurements with notes and location.
This utility app precisely measures light intensity in LUX and color temperature in Kelvin. It provides real-time exposure readings for photoshoots and filming, helping users adjust lighting for optimal results.
Measure ambient light levels accurately using your smartphone. This app provides precise readings in lux and foot candles, offering a convenient and cost-effective alternative to professional illuminometers for personal use.
Transform your smartphone into a professional light meter. Measure illumination in LUX and FC, and check color temperature in kelvins. Ideal for photographers, designers, and anyone needing precise light data.
This app provides precise, real-time light measurements for photography, filmmaking, and design. It offers color temperature analysis, lux and foot-candle readings, and DLI calculations. Optimize your lighting setup with smart shooting recommendations and full manual control.
This powerful light meter app offers a clean, intuitive interface optimized for one-handed use. It displays multiple aperture and shutter speed combinations simultaneously, aiding quick setting selection. Suitable for beginners and experienced photographers alike, it includes advanced features like spot metering, reciprocity failure compensation, and pinhole mode.
