# RTA Audio vs Audio Spectrum Analyzer Pro

The clearest difference is rating: Audio Spectrum Analyzer Pro at 4.4 against RTA Audio's 3.5. Audio Spectrum Analyzer Pro also leads on update cadence (every 7 months vs every 28 months) and ratings volume (239 vs 32). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. RTA Audio 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 3.5. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer Pro has 239 ratings behind it against 32, so its average is the more settled of the two. Written reviews complicate that: 59% of RTA Audio's written reviews are positive against 57% of Audio Spectrum Analyzer Pro's, so the app with the better star average is not the one people write more warmly about.

RTA Audio ships an update every 28 months, Audio Spectrum Analyzer Pro every 7 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | RTA Audio | Audio Spectrum Analyzer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (32 ratings)](https://appshunter.io/ios/app/rta-audio/id525324684/reviews) | **[4.4 (239 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews)** |
| Number of ratings | 32 | **239** |
| Positive reviews | **58.5% of reviews** | 57.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 7 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 2 MB | 40 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [New Ball s.r.o.](https://appshunter.io/developer/1178970340) | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) |

## What reviewers say

### RTA Audio

[App page](https://appshunter.io/ios/app/rta-audio/id525324684)

Analyze audio in real-time with detailed frequency spectrum and waveform visualizations. Record and export your audio analysis results, including spectrograms and frequency tables, for sharing or archiving.

**Highlights:** Real-time audio analysis (FFT), Recording and offline processing, Spectrogram and waveform visualization, Exportable analysis reports (PDF), Adjustable resolution and frequency scale, Peak and RMS metering

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to full version | $14.99 | 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 RTA Audio free?

RTA Audio 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, RTA Audio or Audio Spectrum Analyzer Pro?

Audio Spectrum Analyzer Pro is rated higher. RTA Audio averages 3.5 out of 5 from 32 ratings, while Audio Spectrum Analyzer Pro averages 4.4 from 239 ratings.

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

Neither RTA Audio nor Audio Spectrum Analyzer Pro shows ads.

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

RTA Audio ships an update every 28 months, and Audio Spectrum Analyzer Pro every 7 months. Most recently, RTA Audio was updated on October 23, 2026 and Audio Spectrum Analyzer Pro on October 29, 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.*