# Audio Spectrum Analyzer Pro vs AST Manager Q

The clearest difference is in-app purchases: AST Manager Q at none against Audio Spectrum Analyzer Pro's 2. AST Manager Q also leads on update cadence (every 2 months vs every 7 months). Audio Spectrum Analyzer Pro's advantage is review sentiment (57% vs 24%) and iOS requirement (13.0 vs 17). On price, ads and device support there is nothing between them.

Both are free to download. Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. AST Manager Q asks for nothing beyond the download.

Audio Spectrum Analyzer Pro ships an update every 7 months, AST Manager Q every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Audio Spectrum Analyzer Pro | AST Manager Q |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (239 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews)** | — |
| Number of ratings | **239** | — |
| Positive reviews | **57.4% of reviews** | 23.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 45 MB |
| Requires iOS | **13.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) | [ART SYSTEM, LLC](https://appshunter.io/developer/1524307772) |

## What reviewers say

### Audio Spectrum Analyzer Pro

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806)

Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.

**Highlights:** Octave Band Real Time Analyzer, FFT Plot (Fast Fourier Transform), Sound level meter (dB meter), Noise Rating and Noise Criterion support, Support for external microphones, Pre-calibrated mic profiles

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Mode | $19.99 | per year |
| Premium Pack | $29.99 | one-time |

**What reviewers like**

- 👍 Intuitive and easy-to-use interface
- 💰 Completely free with no ads
- 🎯 Accurate frequency and spectrum analysis
- 📊 Multiple visualization modes (FFT, spectrograph, bar display)
- 🔧 Professional-grade audio measurement tool

**What reviewers complain about**

- 💸 Aggressive subscription/paywall nags
- 🔄 Frequent iOS compatibility issues after updates
- 📉 Features moved behind paywall in recent updates
- 🐛 App crashes on startup (especially iOS 16/26)
- ⚠️ Misleading free trial that requires payment

**Reported bugs**

- App crashes on iOS 16 and iOS 26 launches
- FFT resolution not working after iOS updates
- Graph display freezes or becomes unresponsive
- Spectrograph mode too slow on newer iPhones
- Frequency alignment issues with dynamic display

**Requested features**

- Audio file upload capability
- White noise/test signal generator
- Microphone calibration file support
- Recording functionality with timestamp
- Multiple frequency cursors for comparison


### AST Manager Q

[App page](https://appshunter.io/ios/app/ast-manager-q/id1524307770)

Control AST karaoke systems remotely. Browse an illustrated catalog, search songs by various criteria, and manage playback queues. Adjust playback parameters, record and share performances, and configure system settings.

**Highlights:** Illustrated artist catalog, Song search by number, artist, title, lyrics, Search result filtering, Playback queue management, Control playback parameters, Record and share performances, Karaoke system settings management

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Audio Spectrum Analyzer Pro free?

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

### Is AST Manager Q free?

AST Manager Q is free to download, with no in-app purchases.

### Do Audio Spectrum Analyzer Pro or AST Manager Q have ads?

Neither Audio Spectrum Analyzer Pro nor AST Manager Q shows ads.

### Which is updated more often, Audio Spectrum Analyzer Pro or AST Manager Q?

Audio Spectrum Analyzer Pro ships an update every 7 months, and AST Manager Q every 2 months. Most recently, Audio Spectrum Analyzer Pro was updated on November 2, 2026 and AST Manager Q on November 3, 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.*