# Mini Spectrometer (NIR) vs OSpectrometer

The clearest difference is in-app purchases: Mini Spectrometer (NIR) at none against OSpectrometer's 2. OSpectrometer's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OSpectrometer sells 2 in-app purchases, starting at $2.99 per month. Mini Spectrometer (NIR) asks for nothing beyond the download.

Mini Spectrometer (NIR) ships an update every 2 months, OSpectrometer every 2 weeks. The most recent releases landed on May 16, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Mini Spectrometer (NIR) | OSpectrometer |
| --- | --- | --- |
| Price | Free | Free |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 71 MB |
| Requires iOS | **14.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ams AG](https://appshunter.io/developer/1077235619) | [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382) |

## What reviewers say

### Mini Spectrometer (NIR)

[App page](https://appshunter.io/ios/app/mini-spectrometer-nir/id1635109082)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Mini Spectrometer (NIR) free?

Mini Spectrometer (NIR) is free to download, with no in-app purchases.

### Is OSpectrometer free?

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

### Do Mini Spectrometer (NIR) or OSpectrometer have ads?

Neither Mini Spectrometer (NIR) nor OSpectrometer shows ads.

### Which is updated more often, Mini Spectrometer (NIR) or OSpectrometer?

Mini Spectrometer (NIR) ships an update every 2 months, and OSpectrometer every 2 weeks. Most recently, Mini Spectrometer (NIR) was updated on May 16, 2026 and OSpectrometer on September 10, 2026.

---

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