In this ultrasonic analyzer app, users can visualize and analyze ultrasonic sounds with real-time spectrum, spectrogram, and oscilloscope tools. Includes multiple analysis modes, recording options, and export features.
AppRecs review analysis
AppRecs rating 4.0. Trustworthiness 83 out of 100. Review manipulation risk 21 out of 100. Based on a review sample analyzed.
★★★★☆
4.0
AppRecs Rating
Ratings breakdown
5 star
65%
4 star
6%
3 star
6%
2 star
3%
1 star
21%
What to know
✓
Low review manipulation risk
21% review manipulation risk
✓
Credible reviews
83% trustworthiness score from analyzed reviews
✓
Good user ratings
71% positive sampled reviews
About Ultrasonic Analyzer
Ultrasonic Analyzer can be used to analyze the calls of various animals (e.g., bats, dolphins), measure the frequency response of high-end audio equipment, or evaluate ultrasonic sensors. Additionally, it allows you to analyze short imported audio files within a spectrogram context.
Features
- Sampling rates: 44.1kHz, 48kHz, 96kHz, 192kHz, 200kHz, 250kHz, 384kHz**
- Real-time transposed ultrasound listening during recording*
- Spectrogram analyzer: Color and black & white modes
- Spectrum analyzer
- Oscilloscope (full FFT window size)
- Octave RTA analyzer: Bands – full, 1/3, 1/6, 1/12 (RMS values)
- Max/min Octave RTA values
- dBFS Meter
- Fast real-time response
- Adjustable spectrogram frequency resolution
- Configurable time interval between FFT computations, with values as low as 1ms or even lower
- Fast Fourier Transform (FFT)
- FFT window sizes: 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536
- Recording trigger: Automatically triggers based on specified frequency bands
- Zoom and pan capabilities for all charts
- Measurement tools available in all charts
- Playback analysis
- Transposition during playback
- Slow-down playback: Transpose octaves down for easier analysis
- Picture-in-Picture (PIP) mode: Allows simultaneous spectrogram analysis with a secondary chart (Octave RTA, Spectrum, or Oscilloscope)
- Audio input support: Built-in microphone, external microphone (via USB camera adapter or iPhone/iPad dock connector – Core Audio compliant devices)
- Sharing options: Share charts and audio recordings via email, social networks, or clipboard
- Exporting capabilities: Save audio recordings (WAV) and image charts (PNG) to iOS Document Browser
- Audio file import: Load short audio files from other apps or the iOS Document Browser
- Supported audio formats: WAV, CAF, AAC, MP3
- Automatic sample rate conversion for imported files
- Frequency scale options: Linear and logarithmic
- Amplitude scale options: Linear and logarithmic (dBFS)
- dBFS Meter weighting: dBZ (linear)
- Adjustable spectrogram length (dependent on resolution settings)
Tested with (via USB adapter):
- Dodotronic Ultramic200K, Ultramic250K, Ultramic384K
- Pettersson M500-384
- Avisoft UltraSoundGate 116Un
Make sure you are using the latest iOS update.
*Requires an external microphone with ultrasonic capabilities connected via a USB adapter.
**Real-time analysis at a 96kHz sample rate or higher is only possible with an external USB microphone. Alternatively, you can import files recorded on an external device for non-real-time analysis.
Ultrasonic Analyzer Screenshots
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Reviews for Ultrasonic Analyzer
AOANLA
$20 for *this*?
This app is pretty amateurish, not even supporting Bluetooth headphones on iPhone. It's 2025. When was the last time you saw an app that could only output over wired headphones? I didn't realize that was even a possibility. It's like the developer stopped trying back around 2018, and never updated it further. The app's readouts also mix dB (SPL) and dBFS freely, even though there is no way to get SPL without first calibrating the system. What's up with that? The whole thing just feels very "beta version written by a student in their dorm room." This is the single most expensive single-purchase app I have ever encountered. I probably wouldn't bother to keep it even if it were free.
Setnom80
Counter surveillance uses
Anybody who’s the victim of any kind of surveillance abuse or voyeuristic abuse in general, can use this app to pick up on a nearly imperceptible frequency around 14,000 kHz. The untrained ear you wouldn’t be able to hear this frequency but it is the result of using wave generated surveillance systems such as the CTX 4000 or the national security agencies tempest program that uses subtle amounts of non-ionizing radiation directed at the building that the target is in to pick up on all the electronic and more importantly biometric information similar to what you get from the xavor1000 system. Simply run the recording through a program like audacity or adobe audition and increase the decibel rate what’s you hone in on it with the apps spectrum analyzer.
