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.



250+ iOS apps curated and reviewed
Luminosys is the household name in luminosys, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.4★ (7) | Yes | No | Aug 2026 | |
| 2 | Free | 4.5★ (2.5K) | No | Yes | Aug 2026 | |
| 3 | Free | — | No | Yes | May 2026 | |
| 4 | Free | 5.0★ (1) | No | No | Aug 2026 | |
| 5 | Free | — | No | No | Aug 2026 | |
| 6 | Free | — | No | No | May 2026 | |
| 7 | Free was $2.99 | — | No | Yes | Aug 2026 | |
| 8 | Free | — | No | Yes | Jun 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.




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.








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 app uses your device's camera to measure and analyze various light properties, including illuminance, luminous intensity, and color temperature. It offers real-time histograms, contrast ratio, and noise measurements, with options for image capture and history tracking.




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.




Measure ambient light intensity in Lumens and color temperature in Kelvin using your phone's built-in sensors. Point your device at a light source and see real-time readings, enhanced with augmented reality visualizations.


Measure illumination levels in a location using your device. Combine lux readings with photos and comments, then save or share your findings. Ideal for professionals or anyone needing to assess lighting conditions.


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.


Control smart lights with your phone. Set custom colors, sync with music, and use timers for automated lighting. Explore various scene modes and even change colors by shaking your device or from 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 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 illuminance and color temperature in real-time. Get lighting scene recommendations based on EML, lux, and CCT values. Snapshot data and share trends via CSV or PNG.