Frequency Analyzer

Frequency Analyzer

Audio Spectrum, Spectroid, dB

97 ratings
3 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • August 22, 2025
  • April 22, 2026

Features

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About

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

Real-time FFT analysis
Calibrated SPL measurements
32-bit float audio recording
Synchronized video recording
Spectrogram and octave band analysis
Export WAV, CSV, images, and videos
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What's New in Frequency Analyzer

2.16.2

April 22, 2026

Performance improvements

Subscription plans

Frequency Analyzer Pro Annual

Yearly Pro Subscription

$29.991 Year
7 Days trial
How to cancel Frequency Analyzer subscription ⁉️
2

In-App Purchases

$89.99

Pro access for lifetime

Gives you Pro access forever

User reviews

Bombarded with popups

Even as a pro user you get bombarded with popups. Surveys, notifications, ...
Also the design seems to be straight from ai vibe code

Response from developer

Hi oha-800, thanks for the honest feedback, we appreciate it. We hear you on the popups. Most of them are actually iOS system permission prompts, which we can’t avoid: FrequencyAnalyzer uses the microphone, audio processing, notifications and other hardware APIs, and Apple requires a separate prompt for each one. We do try to keep our own in-app messages (like the occasional survey) to a minimum, especially for Pro users and we’ll keep working to make that even less intrusive. On the design - as a measurement tool, we deliberately keep things minimal and focused on the readings rather than decoration. Thanks again for taking the time to review.

Useless app

Not sure why it needs location to analyze frequency.

Response from developer

You can use the location to document your measurements and exports, but you can opt out of using location data in the app.

Don’t work

It won’t click past the upgrade app to let me try it

Response from developer

Thank you for your feedback. We are currently investigating an issue in Version 2.9 and already released an update to fix it.

Developer apps

FAQ

What is Frequency Analyzer used for?

Frequency Analyzer transforms your device into a professional audio analysis suite. It offers real-time FFT analysis, SPL monitoring, and detailed visualizations for acoustic measurements.

Can Frequency Analyzer be used for certified measurements?

No, Frequency Analyzer is a consumer application for general audio analysis and educational purposes. It is not a certified measurement instrument and should not be used for legally compliant or certified measurements.

What are the subscription options for Frequency Analyzer Pro?

Frequency Analyzer Pro offers weekly and monthly subscription plans. Weekly plans are $2.99/P7D with a 3-day free trial, while monthly plans range from $3.99/P1M to $4.99/P1M, with various free trial periods.

What audio analysis features does Frequency Analyzer offer?

It provides real-time FFT analysis, reference SPL measurement, microphone correction, reference tone calibration, configurable time averaging, and industry-standard weighting filters like dBA and dBC.

Does Frequency Analyzer support recording and exporting data?

Yes, it supports high-quality 32-bit float audio recording and playback, synchronized video recording, and export capabilities for WAV audio, CSV data, and high-resolution images and videos.

What visualization modes are available in Frequency Analyzer?

Frequency Analyzer features high-resolution spectrum analyzer with peak detection, real-time waveform display, professional spectrogram, octave band analysis, amplitude tracking over time, and total level monitoring.

How often is Frequency Analyzer updated?

The app was last updated on March 31, 2026, with version 2.15. This indicates a relatively frequent update cycle for new features and improvements.

What is the age rating for Frequency Analyzer?

Frequency Analyzer has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in audio analysis.