# Ultrasonic Analyzer vs Sound Spectrum Pro

The clearest difference is rating: Sound Spectrum Pro at 5.0 against Ultrasonic Analyzer's 3.9. Sound Spectrum Pro also leads on price ($12.99 vs $19.99) and update cadence (every 9 days vs every 4 months). Ultrasonic Analyzer's advantage is ratings volume (35 vs 1) and iOS requirement (12.4 vs 15.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Ultrasonic Analyzer costs $19.99 and Sound Spectrum Pro $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sound Spectrum Pro holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Ultrasonic Analyzer has 35 ratings behind it against 1, so its average is the more settled of the two.

Ultrasonic Analyzer ships an update every 4 months, Sound Spectrum Pro every 9 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Ultrasonic Analyzer | Sound Spectrum Pro |
| --- | --- | --- |
| Price | $19.99 | **$12.99** |
| Rating | [3.9 (35 ratings)](https://appshunter.io/ios/app/ultrasonic-analyzer/id851069926/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sound-spectrum-pro/id1632089486/reviews)** |
| Number of ratings | **35** | 1 |
| Positive reviews | 55.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 2 MB | 1 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEXUS Pawel Krzywdzinski](https://appshunter.io/developer/377798036) | [Calin Andrian Albescu](https://appshunter.io/developer/1632089488) |

## What reviewers say

### Ultrasonic Analyzer

[App page](https://appshunter.io/ios/app/ultrasonic-analyzer/id851069926)

This app provides real-time audio analysis with visual representations of sound frequencies. It allows users to listen to and analyze ultrasounds, with options for transposed playback and slowed-down analysis of inaudible sounds. It supports various sampling rates and offers detailed charting and measurement tools.

**Highlights:** Real-time spectrum analysis, Spectrogram and oscilloscope views, Octave RTA analyzer, Transposed ultrasound listening, Slowed-down playback, High sampling rates up to 384kHz, Zoom and pan capabilities

**In-app purchases:** none


### Sound Spectrum Pro

[App page](https://appshunter.io/ios/app/sound-spectrum-pro/id1632089486)

This app provides advanced audio analysis tools, including real-time spectrum analysis, sound pressure level measurements, and signal generation. It offers a comprehensive suite for detailed sound evaluation and manipulation with a user-friendly interface.

**Highlights:** Real-Time Analyzer (RTA), Fast Fourier Transform (FFT) display, Sound pressure level (SPL) measurements, Signal generators (tone, noise, sweeps), Impulse response and RT60 measurement, Calibration capabilities, Pan and zoom functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Ultrasonic Analyzer free?

Ultrasonic Analyzer costs $19.99, with no in-app purchases.

### Is Sound Spectrum Pro free?

Sound Spectrum Pro costs $12.99, with no in-app purchases.

### Which has better reviews, Ultrasonic Analyzer or Sound Spectrum Pro?

Sound Spectrum Pro is rated higher. Ultrasonic Analyzer averages 3.9 out of 5 from 35 ratings, while Sound Spectrum Pro averages 5.0 from 1 ratings.

### Do Ultrasonic Analyzer or Sound Spectrum Pro have ads?

Neither Ultrasonic Analyzer nor Sound Spectrum Pro shows ads.

### Which is updated more often, Ultrasonic Analyzer or Sound Spectrum Pro?

Ultrasonic Analyzer ships an update every 4 months, and Sound Spectrum Pro every 9 days. Most recently, Ultrasonic Analyzer was updated on November 1, 2026 and Sound Spectrum Pro 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.*