# AUDIIO vs Spek Spectrogram analyzer

The clearest difference is rating: Spek Spectrogram analyzer at 5.0 against AUDIIO's 4.3. Spek Spectrogram analyzer also leads on in-app purchases (none vs 1) and ads (none vs shown). AUDIIO's advantage is ratings volume (95 vs 1) and iOS requirement (15.6 vs 18.2). On price and device support there is nothing between them.

Both are free to download. AUDIIO sells 1 one-off in-app purchase. Spek Spectrogram analyzer asks for nothing beyond the download.

Spek Spectrogram analyzer holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: AUDIIO has 95 ratings behind it against 1, so its average is the more settled of the two.

AUDIIO ships an update every 3 months, Spek Spectrogram analyzer every 10 days. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | AUDIIO | Spek Spectrogram analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (95 ratings)](https://appshunter.io/ios/app/audiio-rta-analyzer/id1466746908/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spek-spectrogram-analyzer/id6778501151/reviews)** |
| Number of ratings | **95** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 14 MB | 45 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BetaMatters](https://appshunter.io/developer/1437603523) | [Pratik Zinzala](https://appshunter.io/developer/1866618369) |

## What reviewers say

### AUDIIO

[App page](https://appshunter.io/ios/app/audiio-rta-analyzer/id1466746908)

Visualize audio in real-time with various data graphs like RTA Bar, FFT, and Spectrogram. Offers full octave and 1/3 octave analysis with linear or logarithmic scales. Displays peak and current dB data in a sleek, functional interface.

**Highlights:** Real-time audio analysis, RTA Bar / Line Graph, FFT and Spectrogram visualization, Full Octave and 1/3 Octave analysis, Linear / Logarithmic scale, Peak and current dB data

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $4.99 | one-time |


### 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


## Frequently asked questions

### Is AUDIIO free?

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

### Is Spek Spectrogram analyzer free?

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

### Which has better reviews, AUDIIO or Spek Spectrogram analyzer?

Spek Spectrogram analyzer is rated higher. AUDIIO averages 4.3 out of 5 from 95 ratings, while Spek Spectrogram analyzer averages 5.0 from 1 ratings.

### Do AUDIIO or Spek Spectrogram analyzer have ads?

AUDIIO shows ads; Spek Spectrogram analyzer does not.

### Which is updated more often, AUDIIO or Spek Spectrogram analyzer?

AUDIIO ships an update every 3 months, and Spek Spectrogram analyzer every 10 days. Most recently, AUDIIO was updated on October 11, 2026 and Spek Spectrogram analyzer on October 14, 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.*