# Spectrometry vs UniSync.io

The clearest difference is review sentiment: Spectrometry at 100% against UniSync.io's 50%. Spectrometry also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.4). UniSync.io's advantage is rating (4.5 vs 4.0) and update cadence (every 4 weeks vs every 6 months). On price, in-app purchases, monetization model and device support there is nothing between them.

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

UniSync.io holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: UniSync.io has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 100% of Spectrometry's written reviews are positive against 50% of UniSync.io's, so the app with the better star average is not the one people write more warmly about.

Spectrometry ships an update every 6 months, UniSync.io every 4 weeks. The most recent releases landed on September 16, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Spectrometry | UniSync.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/spectrometry/id893384720/reviews) | **[4.5 (24 ratings)](https://appshunter.io/ios/app/unisyncio/id6754664649/reviews)** |
| Number of ratings | 4 | **24** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 43 MB | 59 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [PASCO scientific](https://appshunter.io/developer/361907184) | [UniSync LLC](https://appshunter.io/developer/1879946598) |

## 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


### UniSync.io

[App page](https://appshunter.io/ios/app/unisyncio/id6754664649)

This app automatically syncs assignments from your learning management system to create an intuitive checklist. Never miss a homework deadline or manually create a to-do list again.

**Highlights:** iCalendar integration with Canvas and Learning Suite, Automatic assignment syncing, Intuitive checklist creation, Never miss homework assignments, Eliminates manual checklist creation

**In-app purchases:** none


## Frequently asked questions

### Is Spectrometry free?

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

### Is UniSync.io free?

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

### Which has better reviews, Spectrometry or UniSync.io?

UniSync.io is rated higher. Spectrometry averages 4.0 out of 5 from 4 ratings, while UniSync.io averages 4.5 from 24 ratings.

### Do Spectrometry or UniSync.io have ads?

UniSync.io shows ads; Spectrometry does not.

### Which is updated more often, Spectrometry or UniSync.io?

Spectrometry ships an update every 6 months, and UniSync.io every 4 weeks. Most recently, Spectrometry was updated on September 16, 2026 and UniSync.io on September 24, 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.*