# iAnalyzer vs Audio Spectrum Analyzer Pro

The clearest difference is review sentiment: Audio Spectrum Analyzer Pro at 57% against iAnalyzer's 41%. Audio Spectrum Analyzer Pro also leads on rating (4.4 vs 4.2) and ratings volume (238 vs 75). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. iAnalyzer sells 2 in-app purchases, starting at $4.99 per month and Audio Spectrum Analyzer Pro sells 2 in-app purchases, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

Audio Spectrum Analyzer Pro holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 75 and 238 respectively. Written reviews point the same way: 41% of iAnalyzer's written reviews are positive against 57% of Audio Spectrum Analyzer Pro's.

iAnalyzer ships an update every 5 months, Audio Spectrum Analyzer Pro every 7 months. Both last shipped on September 24, 2026.

## The numbers

| Metric | iAnalyzer | Audio Spectrum Analyzer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (75 ratings)](https://appshunter.io/ios/app/ianalyzer/id335449113/reviews) | **[4.4 (238 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews)** |
| Number of ratings | 75 | **238** |
| Positive reviews | 40.5% of reviews | **57.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 40 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [平 陈](https://appshunter.io/developer/315130423) | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) |

## What reviewers say

### iAnalyzer

[App page](https://appshunter.io/ios/app/ianalyzer/id335449113)

This professional audio analysis software uses FFT to examine sound signals on iOS devices. It offers real-time spectrum analysis, precise peak frequency computation, and a unique instrument tuner function. Ideal for musicians and sound engineers seeking detailed audio insights.

**Highlights:** Real-time FFT spectrum analysis, Octave and 1/3 Octave display, High precision peak frequency computation, Instrument tuner function, Adjustable playback speed, VGA output support, Waveform display

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iAnalyzer Pro (1 Month) | $4.99 | per month |
| iAnalyzer Pro (1 Year) | $29.99 | per year |


### 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


## Frequently asked questions

### Is iAnalyzer free?

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

### Is Audio Spectrum Analyzer Pro free?

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

### Which has better reviews, iAnalyzer or Audio Spectrum Analyzer Pro?

Audio Spectrum Analyzer Pro is rated higher. iAnalyzer averages 4.2 out of 5 from 75 ratings, while Audio Spectrum Analyzer Pro averages 4.4 from 238 ratings.

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

Neither iAnalyzer nor Audio Spectrum Analyzer Pro shows ads.

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

iAnalyzer ships an update every 5 months, and Audio Spectrum Analyzer Pro every 7 months. Most recently, iAnalyzer was updated on September 24, 2026 and Audio Spectrum Analyzer Pro on September 24, 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.*