# Spectrometry vs ADUGroups

The clearest difference is rating: ADUGroups at 4.8 against Spectrometry's 4.0. ADUGroups also leads on update cadence (every 3 weeks vs every 6 months) and ratings volume (22 vs 4). Spectrometry's advantage is iOS requirement (11.0 vs 13.4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ADUGroups holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: ADUGroups has 22 ratings behind it against 4, so its average is the more settled of the two.

Spectrometry ships an update every 6 months, ADUGroups every 3 weeks. The most recent releases landed on October 20, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Spectrometry | ADUGroups |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/spectrometry/id893384720/reviews) | **[4.8 (22 ratings)](https://appshunter.io/ios/app/adugroups/id1175071336/reviews)** |
| Number of ratings | 4 | **22** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 43 MB | 43 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [PASCO scientific](https://appshunter.io/developer/361907184) | [Novalsys, Inc](https://appshunter.io/developer/566688507) |

## What reviewers say

### Spectrometry

[App page](https://appshunter.io/ios/app/spectrometry/id893384720)

This application allows students and teachers to conduct spectrometry experiments using a wireless spectrometer. It measures and analyzes absorbance, transmittance, and fluorescence, supporting full spectrum analysis and Beer's law experiments. The software offers tools for calibration, comparison, and data plotting for educational purposes.

**Highlights:** Measure absorbance, transmittance, fluorescence, Full spectrum analysis, Beer's law and kinetics experiments, Compare multiple spectra, Calibrate dark and reference spectra, Plot absorbance and transmittance, Determine unknown concentration

**In-app purchases:** none


### ADUGroups

[App page](https://appshunter.io/ios/app/adugroups/id1175071336)

Connect with your campus community by discovering and RSVPing to events, sharing news, and networking with peers. Access campus resources, join groups, and utilize features like attendance tracking for events.

**Highlights:** Browse and RSVP to events, Campus and group news feeds, Networking with classmates, Access campus resources, Attendance tracking, Group joining and chat

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spectrometry free?

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

### Is ADUGroups free?

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

### Which has better reviews, Spectrometry or ADUGroups?

ADUGroups is rated higher. Spectrometry averages 4.0 out of 5 from 4 ratings, while ADUGroups averages 4.8 from 22 ratings.

### Do Spectrometry or ADUGroups have ads?

Neither Spectrometry nor ADUGroups shows ads.

### Which is updated more often, Spectrometry or ADUGroups?

Spectrometry ships an update every 6 months, and ADUGroups every 3 weeks. Most recently, Spectrometry was updated on October 20, 2026 and ADUGroups on October 29, 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.*