# Loughborough Wave Lab vs Voice Spectrogram Logger

The clearest difference is review sentiment: Loughborough Wave Lab at 80% against Voice Spectrogram Logger's 0%. Loughborough Wave Lab also leads on rating (4.5 vs 1.0) and in-app purchases (none vs 1). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Voice Spectrogram Logger sells 1 one-off in-app purchase. Loughborough Wave Lab asks for nothing beyond the download.

Loughborough Wave Lab holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Loughborough Wave Lab has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Loughborough Wave Lab's written reviews are positive against 0% of Voice Spectrogram Logger's.

Loughborough Wave Lab ships an update every 3 months, Voice Spectrogram Logger every 15 months. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Loughborough Wave Lab | Voice Spectrogram Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (13 ratings)](https://appshunter.io/ios/app/loughborough-wave-lab/id402424695/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/voice-spectrogram-logger/id1277134462/reviews) |
| Number of ratings | **13** | 1 |
| Positive reviews | **80.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 15 months |
| Monetization | Free | Free |
| Size | 5 MB | 7 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Daniel Browne](https://appshunter.io/developer/361958317) | [Yukiko Iwai](https://appshunter.io/developer/965630131) |

## What reviewers say

### Loughborough Wave Lab

[App page](https://appshunter.io/ios/app/loughborough-wave-lab/id402424695)

This educational app helps students grasp electromagnetic wave concepts through interactive simulations. It features a virtual ripple tank, waveguide simulator, and Young's Double Slit experiment. Educators can create custom simulations for an enhanced learning experience.

**Highlights:** Virtual pond and ripple tank, Sinusoidal pulse generation, Waveguide simulation, Young's Double Slit experiment, Custom simulation mode, Educator-authored simulation uploads

**Features:** macOS Compatibility

**In-app purchases:** none


### Voice Spectrogram Logger

[App page](https://appshunter.io/ios/app/voice-spectrogram-logger/id1277134462)

Visualize voice frequencies in a spectrogram from 20-2500Hz. Adjust display with sliders and log recordings to export as PNG files. Functions fully offline and supports background processing.

**Highlights:** Real-time voice spectrogram display, Adjustable frequency range (20-2500Hz), Zoomable spectrogram with pinch gestures, Customizable spectrogram gradation, Logging mode with history export, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is Loughborough Wave Lab free?

Loughborough Wave Lab is free to download, with no in-app purchases.

### Is Voice Spectrogram Logger free?

Voice Spectrogram Logger is free to download, with in-app purchases available.

### Which has better reviews, Loughborough Wave Lab or Voice Spectrogram Logger?

Loughborough Wave Lab is rated higher. Loughborough Wave Lab averages 4.5 out of 5 from 13 ratings, while Voice Spectrogram Logger averages 1.0 from 1 ratings.

### Do Loughborough Wave Lab or Voice Spectrogram Logger have ads?

Neither Loughborough Wave Lab nor Voice Spectrogram Logger shows ads.

### Which is updated more often, Loughborough Wave Lab or Voice Spectrogram Logger?

Loughborough Wave Lab ships an update every 3 months, and Voice Spectrogram Logger every 15 months. Most recently, Loughborough Wave Lab was updated on October 11, 2026 and Voice Spectrogram Logger on October 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.*