250+ iOS apps curated and reviewed
Out of 250+ light spectrometer apps on iOS, 17 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.2★ (96) | No | Yes | Oct 2026 | |
| 2 |  | Free | 5.0★ (1) | No | No | Oct 2026 | |
| 3 |  | Free | 4.3★ (9) | No | No | Oct 2026 | |
| 4 |  | Free | 3.6★ (10) | No | No | Jul 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | $1.99 | 4.1★ (39) | No | No | Oct 2026 | |
| 7 |  | Free | — | No | No | May 2026 | |
| 8 |  | Free | 2.0★ (4) | No | Yes | Aug 2026 |
This application analyzes light to determine its dominant wavelength in nanometers, frequency in terahertz, and period length in femtoseconds. It provides real-time measurements and allows users to save their findings with notes. The app is designed for measuring colored light sources.
This utility measures light spectrum quality to ensure healthy environments, adhering to WELL standards. It connects via Bluetooth to a mobile device for data collection and 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.
