# Ultrasonic Analyzer vs LocusCast

The clearest difference is price: LocusCast at Free against Ultrasonic Analyzer's $19.99. LocusCast also leads on rating (5.0 vs 3.9) and iOS requirement (9.0 vs 12.4). Ultrasonic Analyzer's advantage is update cadence (every 4 months vs every 17 months) and ratings volume (35 vs 1). On ads, in-app purchases and device support there is nothing between them.

LocusCast is free to download; Ultrasonic Analyzer costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LocusCast 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, LocusCast every 17 months. The most recent releases landed on September 23, 2026 and July 9, 2026 respectively.

## The numbers

| Metric | Ultrasonic Analyzer | LocusCast |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | [3.9 (35 ratings)](https://appshunter.io/ios/app/ultrasonic-analyzer/id851069926/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/locuscast/id866992547/reviews)** |
| Number of ratings | **35** | 1 |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 17 months |
| Monetization | Paid | **Free** |
| Size | 2 MB | 3 MB |
| Requires iOS | 12.4 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEXUS Pawel Krzywdzinski](https://appshunter.io/developer/377798036) | [stephane cousot](https://appshunter.io/developer/866992550) |

## 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


### LocusCast

[App page](https://appshunter.io/ios/app/locuscast/id866992547)

Stream high-quality audio live from your device to a global sound map. This app uses GPS to pinpoint your stream's location and offers persistent connections for uninterrupted broadcasting. It's designed for musicians and sound artists to contribute to a collaborative audio project.

**Highlights:** Live audio streaming, GPS location tagging, High quality mono/stereo stream, Ogg encoding, Persistent stream connection, Syncs with SoundMap account

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ultrasonic Analyzer free?

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

### Is LocusCast free?

LocusCast is free to download, with no in-app purchases.

### Which has better reviews, Ultrasonic Analyzer or LocusCast?

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

### Do Ultrasonic Analyzer or LocusCast have ads?

Neither Ultrasonic Analyzer nor LocusCast shows ads.

### Which is updated more often, Ultrasonic Analyzer or LocusCast?

Ultrasonic Analyzer ships an update every 4 months, and LocusCast every 17 months. Most recently, Ultrasonic Analyzer was updated on September 23, 2026 and LocusCast on July 9, 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.*