# OSpectrometer vs Spectroscope

The clearest difference is price: OSpectrometer at Free against Spectroscope's $14.99. Spectroscope's advantage is in-app purchases (none vs 2) and update cadence (every 5 days vs every 2 weeks). On ads, device support and iOS requirement there is nothing between them.

OSpectrometer is free to download; Spectroscope costs $14.99 up front. OSpectrometer sells 2 in-app purchases, starting at $2.99 per month. Spectroscope asks for nothing beyond the download.

OSpectrometer ships an update every 2 weeks, Spectroscope every 5 days. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | OSpectrometer | Spectroscope |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/ospectrometer/id6446124449/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | **#195** |
| Size | 71 MB | 25 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382) | [LEONARDO TAZZINI](https://appshunter.io/developer/1751785749) |

## What reviewers say

### OSpectrometer

[App page](https://appshunter.io/ios/app/ospectrometer/id6446124449)

This app uses your device's camera and screen to perform basic optical spectroscopy. Analyze the visible light spectrum of objects, map light wavelengths to RGB values, and save or share your findings. It functions offline without external hardware.

**Highlights:** Visible light spectrum analysis, RGB color value mapping, Wavelength selection and scanning, Front camera reflection sensing, Save and share results, Offline functionality

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| month | $2.99 | per month |
| year | $9.99 | per year |


### Spectroscope

[App page](https://appshunter.io/ios/app/spectroscope/id6741684078)

**Currently charting:** #195 Top Paid · Utilities (US App Store)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OSpectrometer free?

OSpectrometer is free to download, with in-app purchases available.

### Is Spectroscope free?

Spectroscope costs $14.99, with no in-app purchases.

### Do OSpectrometer or Spectroscope have ads?

Neither OSpectrometer nor Spectroscope shows ads.

### Which is updated more often, OSpectrometer or Spectroscope?

OSpectrometer ships an update every 2 weeks, and Spectroscope every 5 days. Most recently, OSpectrometer was updated on September 10, 2026 and Spectroscope on September 9, 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.*