# Modules vs Sound Spectrum Analysis

Modules and Sound Spectrum Analysis both sit at 3.7 stars, but that hides the real split: 58% of Sound Spectrum Analysis's written reviews are positive against 45% of Modules's. Modules's advantage is iOS requirement (9.0 vs 15.6). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Modules sells 1 one-off in-app purchase and Sound Spectrum Analysis sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 3.7 for Modules against 3.6 for Sound Spectrum Analysis. Both are backed by a comparable volume of ratings — 18 and 42 respectively. Written reviews are what separate them: 45% of Modules's written reviews are positive against 58% of Sound Spectrum Analysis's.

Modules ships an update monthly, Sound Spectrum Analysis every 5 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Modules | Sound Spectrum Analysis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (18 ratings)](https://appshunter.io/ios/app/modules-music-visualizer/id1222489841/reviews)** | [3.6 (42 ratings)](https://appshunter.io/ios/app/sound-spectrum-analysis/id1434975523/reviews) |
| Number of ratings | 18 | **42** |
| Positive reviews | 45.5% of reviews | **58.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 76 MB | 5 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Y. MOCHIDUKI](https://appshunter.io/developer/556544131) | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) |

## What reviewers say

### Modules

[App page](https://appshunter.io/ios/app/modules-music-visualizer/id1222489841)

Create dynamic visual effects synchronized with your music library or microphone input. Select songs from your device to bring your audio to life with unique visual experiences.

**Highlights:** Music visualizer, Microphone input, Local music library integration, Customizable visual effects

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


### Sound Spectrum Analysis

[App page](https://appshunter.io/ios/app/sound-spectrum-analysis/id1434975523)

Analyze sound spectrums in real-time using your device's microphone. This tool offers detailed frequency and amplitude scales, various window functions, and octave band analysis. It can also function as a noise level meter and allows for data export and saving of measurements.

**Highlights:** Real-time sound spectrum analysis, Fast Fourier Transform (FFT) with adjustable size, Linear and logarithmic frequency/amplitude scales, Octave band analysis (1/1, 1/3, 1/6, 1/12), Multiple window functions, A- and C-Weightings, Sound level meter (dB SPL)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


## Frequently asked questions

### Is Modules free?

Modules is free to download, with in-app purchases available.

### Is Sound Spectrum Analysis free?

Sound Spectrum Analysis is free to download, with in-app purchases available.

### Which has better reviews, Modules or Sound Spectrum Analysis?

Modules is rated higher. Modules averages 3.7 out of 5 from 18 ratings, while Sound Spectrum Analysis averages 3.6 from 42 ratings.

### Do Modules or Sound Spectrum Analysis have ads?

Neither Modules nor Sound Spectrum Analysis shows ads.

### Which is updated more often, Modules or Sound Spectrum Analysis?

Modules ships an update monthly, and Sound Spectrum Analysis every 5 weeks. Most recently, Modules was updated on November 2, 2026 and Sound Spectrum Analysis on November 4, 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.*