# Voice Spectrogram Logger vs Fractal Generator

The clearest difference is review sentiment: Fractal Generator at 60% against Voice Spectrogram Logger's 0%. Fractal Generator also leads on rating (4.3 vs 1.0) and update cadence (every 3 months vs every 15 months). Voice Spectrogram Logger's advantage is monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Voice Spectrogram Logger sells 1 one-off in-app purchase and Fractal Generator sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Fractal Generator holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Fractal Generator has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Voice Spectrogram Logger's written reviews are positive against 60% of Fractal Generator's.

Voice Spectrogram Logger ships an update every 15 months, Fractal Generator every 3 months. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Voice Spectrogram Logger | Fractal Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/voice-spectrogram-logger/id1277134462/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/fractal-generator/id1434904648/reviews)** |
| Number of ratings | 1 | **6** |
| Positive reviews | 0.0% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 19 MB |
| Requires iOS | **15.5** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Yukiko Iwai](https://appshunter.io/developer/965630131) | [Russell Thorman](https://appshunter.io/developer/1093341902) |

## What reviewers say

### 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 |


### Fractal Generator

[App page](https://appshunter.io/ios/app/fractal-generator/id1434904648)

Explore the beauty of mathematics by creating intricate fractals. Design them using traditional mathematical methods or a visual drag-and-drop builder. Learn, experiment, and export high-resolution images of your mathematical art.

**Highlights:** Create fractals analytically, Visual drag-and-drop fractal builder, Learn fractal mathematics, Experiment with transformations, Export high-resolution images, Built-in tutorial

**Features:** Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Leaf Collection | $0.99 | one-time |
| Snowflake Collection | $0.99 | one-time |
| Arrow Collection | $0.99 | one-time |
| Spiral Collection | $0.99 | one-time |
| Fractal Generator Pro | $2.99 | one-time |


## Frequently asked questions

### Is Voice Spectrogram Logger free?

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

### Is Fractal Generator free?

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

### Which has better reviews, Voice Spectrogram Logger or Fractal Generator?

Fractal Generator is rated higher. Voice Spectrogram Logger averages 1.0 out of 5 from 1 ratings, while Fractal Generator averages 4.3 from 6 ratings.

### Do Voice Spectrogram Logger or Fractal Generator have ads?

Neither Voice Spectrogram Logger nor Fractal Generator shows ads.

### Which is updated more often, Voice Spectrogram Logger or Fractal Generator?

Voice Spectrogram Logger ships an update every 15 months, and Fractal Generator every 3 months. Most recently, Voice Spectrogram Logger was updated on October 2, 2026 and Fractal Generator on September 29, 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.*