250+ iOS apps curated and reviewed
The best luminosys light meter apps on iPhone average 4.2★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.4★ (7) | Yes | No | Oct 2026 | |
| 2 |  | Free | 5.0★ (3) | No | No | Oct 2026 | |
| 3 |  | Free | 4.5★ (2.6K) | No | Yes | Oct 2026 | |
| 4 |  | $1.99 | 4.0★ (79) | No | No | Oct 2026 | |
| 5 |  | Free | — | Yes | Yes | Jul 2026 | |
| 6 |  | Free | 3.9★ (5.1K) | Yes | Yes | Oct 2026 | |
| 7 |  | $1.99 | 3.8★ (121) | No | No | Aug 2026 | |
| 8 |  | $2.99 | — | No | No | Sep 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 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.
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.
