# soundOscope vs Audio Spectrum Analyzer Pro

The clearest difference is rating: Audio Spectrum Analyzer Pro at 4.4 against soundOscope's 2.4. Audio Spectrum Analyzer Pro also leads on update cadence (every 7 months vs every 39 months) and ratings volume (239 vs 7). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. soundOscope sells 1 one-off in-app purchase 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 2.4. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer Pro has 239 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 55% of soundOscope's written reviews are positive against 57% of Audio Spectrum Analyzer Pro's.

soundOscope ships an update every 39 months, Audio Spectrum Analyzer Pro every 7 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | soundOscope | Audio Spectrum Analyzer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (7 ratings)](https://appshunter.io/ios/app/soundoscope/id494240165/reviews) | **[4.4 (239 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews)** |
| Number of ratings | 7 | **239** |
| Positive reviews | 54.5% of reviews | **57.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 7 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 40 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [cstools GmbH](https://appshunter.io/developer/466412104) | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) |

## What reviewers say

### soundOscope

[App page](https://appshunter.io/ios/app/soundoscope/id494240165)

Record, analyze, and manipulate sounds with this audio laboratory. Adjust playback speed, add effects like echo, and reverse or loop recordings. Enhance your creations further with in-app purchases for advanced editing tools.

**Highlights:** Record and playback sounds, Adjust playback speed, Add echo and signal effects, Zoom and reverse audio, Share edited recordings via email, Advanced editing with in-app purchases

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Edit Feature | $1.99 | one-time |


### 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 soundOscope free?

soundOscope 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, soundOscope or Audio Spectrum Analyzer Pro?

Audio Spectrum Analyzer Pro is rated higher. soundOscope averages 2.4 out of 5 from 7 ratings, while Audio Spectrum Analyzer Pro averages 4.4 from 239 ratings.

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

Neither soundOscope nor Audio Spectrum Analyzer Pro shows ads.

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

soundOscope ships an update every 39 months, and Audio Spectrum Analyzer Pro every 7 months. Most recently, soundOscope was updated on November 1, 2026 and Audio Spectrum Analyzer Pro on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*