# Audio / Spectrum Analyzer vs Audio Spectrum Pro

The clearest difference is in-app purchases: Audio Spectrum Pro at none against Audio / Spectrum Analyzer's 1. Audio Spectrum Pro also leads on ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Audio / Spectrum Analyzer sells 1 one-off in-app purchase. Audio Spectrum Pro asks for nothing beyond the download.

Audio / Spectrum Analyzer ships an update every 2 weeks, Audio Spectrum Pro every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Audio / Spectrum Analyzer | Audio Spectrum Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 78.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 3 MB |
| Requires iOS | 17.0 | **16.2** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [VADMAX SP Z 0 0](https://appshunter.io/developer/1539621802) |

## What reviewers say

### Audio / Spectrum Analyzer

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574)

Analyze audio signals in real-time with waveform, amplitude spectrum, and spectrogram displays. Offers detailed customization for FFT size, window functions, and frequency weighting. Includes tools for generating basic waveforms and measurement signals.

**Highlights:** Simultaneous Waveform, Spectrum, Spectrogram display, Customizable FFT size and window functions, Frequency weighting (Flat, dBA, dBC), Octave analysis, Basic waveform and measurement signal generation, Peak hold and spectrum tilt

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Remove ads, High-Res analysis) | $11.99 | one-time |

**What reviewers like**

- 👍 Customizable features
- ⚙️ Accurate measurements
- 🚀 Helpful for troubleshooting
- 💡 Useful for ghost hunting

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔋 High battery and CPU usage
- 🚫 Inappropriate ads/content
- 🔒 Security concerns with payment info

**Reported bugs**

- Stuck on latest measurement
- White noise instead of expected functionality
- Disconnects AirPods

**Requested features**

- Sampling rate adjustment
- Wave shape tracking
- Audio file analysis
- Octave analysis


### 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 Audio / Spectrum Analyzer free?

Audio / Spectrum Analyzer is free to download, with in-app purchases available.

### Is Audio Spectrum Pro free?

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

### Do Audio / Spectrum Analyzer or Audio Spectrum Pro have ads?

Audio / Spectrum Analyzer shows ads; Audio Spectrum Pro does not.

### Which is updated more often, Audio / Spectrum Analyzer or Audio Spectrum Pro?

Audio / Spectrum Analyzer ships an update every 2 weeks, and Audio Spectrum Pro every 5 days. Most recently, Audio / Spectrum Analyzer was updated on November 3, 2026 and Audio Spectrum Pro on October 31, 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.*