# UV Analyzer vs Light Spectrometer Wavelength

The clearest difference is in-app purchases: UV Analyzer at none against Light Spectrometer Wavelength's 7. Light Spectrometer Wavelength's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price, update cadence and ads there is nothing between them.

Both are free to download. Light Spectrometer Wavelength sells 4 in-app purchases, starting at $0.99 per month. UV Analyzer asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | UV Analyzer | Light Spectrometer Wavelength |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (94 ratings)](https://appshunter.io/ios/app/light-spectrometer-wavelength/id6450930820/reviews)** |
| Number of ratings | — | **94** |
| Positive reviews | — | 72.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 43 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IST METZ GmbH & Co.KG](https://appshunter.io/developer/1738222448) | [Contechity AB](https://appshunter.io/developer/1649290454) |

## What reviewers say

### UV Analyzer

[App page](https://appshunter.io/ios/app/uv-analyzer/id1449450187)

**Features:** Vision Pro support

**In-app purchases:** none


### Light Spectrometer Wavelength

[App page](https://appshunter.io/ios/app/light-spectrometer-wavelength/id6450930820)

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.

**Highlights:** Measures dominant wavelength (nm), Measures frequency (THz), Measures period length (fs), Real-time measurement, Save measurements with notes, Optional calibration

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $0.99 | per month |
| Full access | $0.99 | per month |
| Full access | $4.99 | per year |
| Full access | $6.99 | one-time |


## Frequently asked questions

### Is UV Analyzer free?

UV Analyzer is free to download, with no in-app purchases.

### Is Light Spectrometer Wavelength free?

Light Spectrometer Wavelength is free to download, with in-app purchases available.

### Do UV Analyzer or Light Spectrometer Wavelength have ads?

Neither UV Analyzer nor Light Spectrometer Wavelength shows ads.

### Which is updated more often, UV Analyzer or Light Spectrometer Wavelength?

UV Analyzer ships an update every 2 months, and Light Spectrometer Wavelength every 2 months. Most recently, UV Analyzer was updated on October 17, 2026 and Light Spectrometer Wavelength on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*