# Spectrometry vs Relay Smart Agent

The clearest difference is review sentiment: Spectrometry at 100% against Relay Smart Agent's 0%. Spectrometry also leads on rating (4.0 vs 1.2) and iOS requirement (11.0 vs 15.0). Relay Smart Agent's advantage is update cadence (every 2 months vs every 6 months) and ratings volume (33 vs 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.

Spectrometry holds the better App Store score, 4.0 against 1.2. That said, the two scores are not equally well evidenced: Relay Smart Agent has 33 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Spectrometry's written reviews are positive against 0% of Relay Smart Agent's.

Spectrometry ships an update every 6 months, Relay Smart Agent every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Spectrometry | Relay Smart Agent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/spectrometry/id893384720/reviews)** | [1.2 (33 ratings)](https://appshunter.io/ios/app/relay-smart-agent/id1374371214/reviews) |
| Number of ratings | 4 | **33** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 43 MB | 9 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PASCO scientific](https://appshunter.io/developer/361907184) | [Lightspeed Solutions, LLC](https://appshunter.io/developer/367422071) |

## 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


### Relay Smart Agent

[App page](https://appshunter.io/ios/app/relay-smart-agent/id1374371214)

This application offers web filtering and safety features for iOS devices, ensuring CIPA compliance for schools. It provides on and off-campus protection and reports on student activity, acting as a hardware-free cloud solution.

**Highlights:** CIPA compliant web filtering, On/off campus safety, Student activity reporting, Hardware-free cloud solution, Anytime, anywhere filtering

**In-app purchases:** none


## Frequently asked questions

### Is Spectrometry free?

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

### Is Relay Smart Agent free?

Relay Smart Agent is free to download, with no in-app purchases.

### Which has better reviews, Spectrometry or Relay Smart Agent?

Spectrometry is rated higher. Spectrometry averages 4.0 out of 5 from 4 ratings, while Relay Smart Agent averages 1.2 from 33 ratings.

### Do Spectrometry or Relay Smart Agent have ads?

Neither Spectrometry nor Relay Smart Agent shows ads.

### Which is updated more often, Spectrometry or Relay Smart Agent?

Spectrometry ships an update every 6 months, and Relay Smart Agent every 2 months. Most recently, Spectrometry was updated on November 1, 2026 and Relay Smart Agent on November 2, 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.*