# Spek Spectrogram analyzer vs Resonant Lab Sounds

The clearest difference is in-app purchases: Spek Spectrogram analyzer at none against Resonant Lab Sounds's 2. Spek Spectrogram analyzer also leads on update cadence (every 10 days vs every 5 weeks). Resonant Lab Sounds's advantage is iOS requirement (15.6 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. Resonant Lab Sounds sells 2 in-app purchases, starting at $4.99 per month. Spek Spectrogram analyzer asks for nothing beyond the download.

Spek Spectrogram analyzer ships an update every 10 days, Resonant Lab Sounds every 5 weeks. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Spek Spectrogram analyzer | Resonant Lab Sounds |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Monetization | Free | — |
| Size | 45 MB | 74 MB |
| Requires iOS | 18.2 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pratik Zinzala](https://appshunter.io/developer/1866618369) | [Resonant Labs LLC (AZ)](https://appshunter.io/developer/6776136300) |

## 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


### Resonant Lab Sounds

[App page](https://appshunter.io/ios/app/resonant-lab-sounds/id6779431586)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sounds Pro - Monthly | $4.99 | per month |
| Sounds Pro - Yearly | $19.99 | per year |


## Frequently asked questions

### Is Spek Spectrogram analyzer free?

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

### Is Resonant Lab Sounds free?

Resonant Lab Sounds is free to download, with in-app purchases available.

### Do Spek Spectrogram analyzer or Resonant Lab Sounds have ads?

Neither Spek Spectrogram analyzer nor Resonant Lab Sounds shows ads.

### Which is updated more often, Spek Spectrogram analyzer or Resonant Lab Sounds?

Spek Spectrogram analyzer ships an update every 10 days, and Resonant Lab Sounds every 5 weeks. Most recently, Spek Spectrogram analyzer was updated on October 14, 2026 and Resonant Lab Sounds on September 25, 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.*