# Audio Spectrum Analyzer Pro vs Audio RTA

The clearest difference is rating: Audio RTA at 5.0 against Audio Spectrum Analyzer Pro's 4.4. Audio RTA also leads on update cadence (weekly vs every 7 months) and monetization model (free vs free with in-app purchases). Audio Spectrum Analyzer Pro's advantage is ratings volume (239 vs 1) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases 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 and Audio RTA sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Audio RTA holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer Pro has 239 ratings behind it against 1, so its average is the more settled of the two.

Audio Spectrum Analyzer Pro ships an update every 7 months, Audio RTA weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Audio Spectrum Analyzer Pro | Audio RTA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (239 ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-pro/id1152352806/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/audio-rta-spectrum-analyzer/id6784479397/reviews)** |
| Number of ratings | **239** | 1 |
| Positive reviews | 57.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 54 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vlad Polyanskiy](https://appshunter.io/developer/438646985) | [Mateus Polonini Cardoso](https://appshunter.io/developer/1530866903) |

## 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


### Audio RTA

[App page](https://appshunter.io/ios/app/audio-rta-spectrum-analyzer/id6784479397)

This application transforms your mobile device into a real-time audio analysis tool. It allows you to monitor sound frequencies, decibel levels, and identify peaks using your device's microphone, aiding in the tuning and testing of various audio systems.

**Highlights:** Real-time RTA/FFT analyzer, dB meter, Frequency generator, Test tones, noise, and sweeps, Subwoofer test tools, Stereo channel tests

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Analyzer RTA Pro | $10.99 | one-time |


## Frequently asked questions

### Is Audio Spectrum Analyzer Pro free?

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

### Is Audio RTA free?

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

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

Audio RTA is rated higher. Audio Spectrum Analyzer Pro averages 4.4 out of 5 from 239 ratings, while Audio RTA averages 5.0 from 1 ratings.

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

Neither Audio Spectrum Analyzer Pro nor Audio RTA shows ads.

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

Audio Spectrum Analyzer Pro ships an update every 7 months, and Audio RTA weekly. Most recently, Audio Spectrum Analyzer Pro was updated on November 2, 2026 and Audio RTA 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.*