# Touch Waves vs Noise Spectrum Logger

The clearest difference is price: Noise Spectrum Logger at Free against Touch Waves's $3.99. Noise Spectrum Logger also leads on rating (5.0 vs 3.0) and iOS requirement (15.5 vs 26.0). Touch Waves's advantage is in-app purchases (none vs 1) and update cadence (every 5 months vs every 10 months). On ratings volume, ads and device support there is nothing between them.

Noise Spectrum Logger is free to download; Touch Waves costs $3.99 up front. Noise Spectrum Logger sells 1 one-off in-app purchase. Touch Waves asks for nothing beyond the download.

Noise Spectrum Logger holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Touch Waves ships an update every 5 months, Noise Spectrum Logger every 10 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Touch Waves | Noise Spectrum Logger |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/touch-waves/id347672384/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/noise-spectrum-logger/id1153920486/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 10 months |
| Monetization | Paid | **Free** |
| Size | 49 MB | 5 MB |
| Requires iOS | 26.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Yukiko Iwai](https://appshunter.io/developer/965630131) |

## What reviewers say

### Touch Waves

[App page](https://appshunter.io/ios/app/touch-waves/id347672384)

Explore wave physics with interactive animations and detailed explanations. This app covers vibrations, waves on strings, acoustics, and optics, making complex concepts visual and understandable for students and educators.

**Highlights:** Wave physics concepts, Interactive animations (2D & 3D), Basic equations, Classroom projection support, Covers vibration, acoustics, optics, Detailed subject list

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

**In-app purchases:** none


### Noise Spectrum Logger

[App page](https://appshunter.io/ios/app/noise-spectrum-logger/id1153920486)

Visualize sound frequencies in real-time with a dynamic spectrum display. Log and export audio data for analysis, with options for smoothing and background processing. Access all features offline.

**Highlights:** Real-time spectrum display (20-20000Hz), Zoomable spectrum view, Maximum value highlighting, Spectrum smoothing options (Mean/RMS), Logging and CSV export, Background processing, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

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


## Frequently asked questions

### Is Touch Waves free?

Touch Waves costs $3.99, with no in-app purchases.

### Is Noise Spectrum Logger free?

Noise Spectrum Logger is free to download, with in-app purchases available.

### Which has better reviews, Touch Waves or Noise Spectrum Logger?

Noise Spectrum Logger is rated higher. Touch Waves averages 3.0 out of 5 from 2 ratings, while Noise Spectrum Logger averages 5.0 from 1 ratings.

### Do Touch Waves or Noise Spectrum Logger have ads?

Neither Touch Waves nor Noise Spectrum Logger shows ads.

### Which is updated more often, Touch Waves or Noise Spectrum Logger?

Touch Waves ships an update every 5 months, and Noise Spectrum Logger every 10 months. Most recently, Touch Waves was updated on October 13, 2026 and Noise Spectrum Logger on October 7, 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.*