# Spek Spectrogram analyzer vs Audio Spectrum Pro

The clearest difference is iOS requirement: Audio Spectrum Pro at 16.2 against Spek Spectrogram analyzer's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Spek Spectrogram analyzer ships an update every 10 days, Audio Spectrum Pro every 5 days. The most recent releases landed on July 21, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Spek Spectrogram analyzer | Audio Spectrum Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spek-spectrogram-analyzer/id6778501151/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | Free | — |
| Size | 45 MB | 3 MB |
| Requires iOS | 18.2 | **16.2** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pratik Zinzala](https://appshunter.io/developer/1866618369) | [VADMAX SP Z 0 0](https://appshunter.io/developer/1539621802) |

## What reviewers say

### Spek Spectrogram analyzer

[App page](https://appshunter.io/ios/app/spek-spectrogram-analyzer/id6778501151)

Visualize audio frequencies with detailed spectrograms. Inspect audio quality, identify compression artifacts, and analyze sound changes over time. Process audio locally for enhanced privacy and security.

**Highlights:** Detailed spectrogram visualization, Frequency and artifact analysis, Audio quality evaluation, Real-time microphone input, Integrated audio player, Customizable analysis settings, Pinch-to-zoom navigation

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

**In-app purchases:** none


### Audio Spectrum Pro

[App page](https://appshunter.io/ios/app/audio-spectrum-pro-analyzer/id6780856025)

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

**In-app purchases:** none


## Frequently asked questions

### Is Spek Spectrogram analyzer free?

Spek Spectrogram analyzer is free to download, with no in-app purchases.

### Is Audio Spectrum Pro free?

Audio Spectrum Pro is free to download, with no in-app purchases.

### Do Spek Spectrogram analyzer or Audio Spectrum Pro have ads?

Neither Spek Spectrogram analyzer nor Audio Spectrum Pro shows ads.

### Which is updated more often, Spek Spectrogram analyzer or Audio Spectrum Pro?

Spek Spectrogram analyzer ships an update every 10 days, and Audio Spectrum Pro every 5 days. Most recently, Spek Spectrogram analyzer was updated on July 21, 2026 and Audio Spectrum Pro on September 5, 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.*