# Modules vs Spectrolite

The clearest difference is rating: Spectrolite at 4.8 against Modules's 4.0. Spectrolite also leads on review sentiment (83% vs 45%) and ratings volume (51 vs 17). Modules's advantage is update cadence (monthly vs every 8 months) and iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Spectrolite holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 17 and 51 respectively. Written reviews point the same way: 45% of Modules's written reviews are positive against 83% of Spectrolite's.

Modules ships an update monthly, Spectrolite every 8 months. The most recent releases landed on September 2, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Modules | Spectrolite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (17 ratings)](https://appshunter.io/ios/app/modules-music-visualizer/id1222489841/reviews) | **[4.8 (51 ratings)](https://appshunter.io/ios/app/spectrolite/id1480240180/reviews)** |
| Number of ratings | 17 | **51** |
| Positive reviews | 45.5% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 8 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 76 MB | 1 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Y. MOCHIDUKI](https://appshunter.io/developer/556544131) | [Waxing Wave](https://appshunter.io/developer/392942046) |

## 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 |


### Spectrolite

[App page](https://appshunter.io/ios/app/spectrolite/id1480240180)

This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.

**Highlights:** Real-time spectrogram visualization, Constant-Q, linear, and mel frequency scales, Full human hearing frequency range, Intuitive touch panning and zooming, Adjustable gain, Q, and other parameters, Pro version: grids, scales, spectrum view, tap-to-measure

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |


## Frequently asked questions

### Is Modules free?

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

### Is Spectrolite free?

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

### Which has better reviews, Modules or Spectrolite?

Spectrolite is rated higher. Modules averages 4.0 out of 5 from 17 ratings, while Spectrolite averages 4.8 from 51 ratings.

### Do Modules or Spectrolite have ads?

Neither Modules nor Spectrolite shows ads.

### Which is updated more often, Modules or Spectrolite?

Modules ships an update monthly, and Spectrolite every 8 months. Most recently, Modules was updated on September 2, 2026 and Spectrolite on September 23, 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.*