# Spectrometry vs Thunderbird Times

The clearest difference is review sentiment: Spectrometry at 100% against Thunderbird Times's 63%. Spectrometry also leads on iOS requirement (11.0 vs 15.1). Thunderbird Times's advantage is update cadence (every 2 months vs every 6 months) and device support (3 vs 1). 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 ships an update every 6 months, Thunderbird Times every 2 months. The most recent releases landed on September 16, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Spectrometry | Thunderbird Times |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/spectrometry/id893384720/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **100.0% of reviews** | 63.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 43 MB | 45 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PASCO scientific](https://appshunter.io/developer/361907184) | [Surrey School District](https://appshunter.io/developer/634542422) |

## 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


### Thunderbird Times

[App page](https://appshunter.io/ios/app/thunderbird-times/id1123354477)

This official school app provides students, parents, and staff with timely updates on school news, event calendars, and important announcements. It offers push notifications for closures and news, easy access to school resources, and convenient sharing of events.

**Highlights:** Push notifications for news and closures, Up-to-date event calendars, Access to school resources, Share school events, Export events to personal calendar, Contact school via email/phone/navigation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spectrometry free?

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

### Is Thunderbird Times free?

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

### Do Spectrometry or Thunderbird Times have ads?

Neither Spectrometry nor Thunderbird Times shows ads.

### Which is updated more often, Spectrometry or Thunderbird Times?

Spectrometry ships an update every 6 months, and Thunderbird Times every 2 months. Most recently, Spectrometry was updated on September 16, 2026 and Thunderbird Times on September 20, 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.*