# uSpectrumX vs Mini Spectrometer (NIR)

The clearest difference is iOS requirement: uSpectrumX at 9.0 against Mini Spectrometer (NIR)'s 14.4. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

uSpectrumX ships an update every 3 months, Mini Spectrometer (NIR) every 2 months. The most recent releases landed on October 4, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | uSpectrumX | Mini Spectrometer (NIR) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 25 MB | 18 MB |
| Requires iOS | **9.0** | 14.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [United Power Research Technology Corporation](https://appshunter.io/developer/1501316337) | [ams AG](https://appshunter.io/developer/1077235619) |

## What reviewers say

### uSpectrumX

[App page](https://appshunter.io/ios/app/uspectrumx/id1318581445)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mini Spectrometer (NIR)

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is uSpectrumX free?

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

### Is Mini Spectrometer (NIR) free?

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

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

Neither uSpectrumX nor Mini Spectrometer (NIR) shows ads.

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

uSpectrumX ships an update every 3 months, and Mini Spectrometer (NIR) every 2 months. Most recently, uSpectrumX was updated on October 4, 2026 and Mini Spectrometer (NIR) on September 18, 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.*