248+ iOS apps curated and reviewed
The best luminosys light meter apps on iPhone average 4.1★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.4★ (7) | Yes | No | May 2026 |
| 2 |  | Free | 4.6★ (4.9K) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.5★ (2.5K) | No | Yes | Aug 2026 |
| 4 |  | Free | 3.9★ (5.1K) | Yes | Yes | Aug 2026 |
| 5 |  | $1.99 | 4.0★ (79) | No | No | Aug 2026 |
| 6 |  | Free | — | Yes | Yes | Jul 2026 |
| 7 |  | $1.99 | 3.8★ (118) | No | No | Jul 2026 |
| 8 |  | $2.99 | 4.2★ (5) | No | No | Jul 2026 |
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 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.
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.
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.
Measure light intensity accurately with your smartphone. This tool provides real-time readings in lux and foot candles, calibrated with professional equipment. Ideal for indoor and outdoor use, it offers average and maximum value tracking.
This application acts as a portable light meter, allowing users to measure light intensity in lux and foot candles. It offers real-time readings, a log library for saving measurements, and the ability to calibrate with professional devices for enhanced accuracy. The app supports both front and rear cameras and saves scene images.
This app transforms your phone into an ambient light meter, providing instant lux readings with clear, easy-to-understand interpretations for plants, desks, and rooms. It allows for side-by-side comparisons of different light spots and saves results for later review.
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 accurately using your smartphone. This tool provides precise readings in lux and foot candles, offering a convenient and cost-effective alternative to professional illuminometers for personal use.
Measure ambient light levels using your smartphone's camera. Get quick and precise lux readings for personal use, saving you the cost of professional equipment. Simply open the app and point your camera to see real-time measurements.
Transform your device into a professional light meter to measure luminosity in lux and foot-candles. Achieve optimal illumination for any space, from greenhouses to workspaces, ensuring comfort and preventing glare. Calibrated with reference equipment for precise and reliable readings.
This tool transforms your iPhone into a precise light meter, offering multiple modes for various environments and photography needs. It records measurement history, allows for notes and comparisons, and supports CSV export for detailed analysis.
This app measures ambient light levels in lux or foot-candles using your iPhone camera. It provides instant feedback on whether a space is too dim, comfortable, or bright enough for various tasks and offers calibration options.
This pocket-sized device streams real-time light and color data to your smartphone, offering precise control over exposure and color consistency for photos, videos, and cinema. It measures various light types and color parameters, and includes gel filter libraries for creative adjustments.
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.