Frequency Analyzer

Frequency Analyzer

Sound Decibel Meter, Spectroid

187 ratings
11 reviews
Free
In-App Purchases

Details

Released
August 22, 2025
Updated
October 30, 2026

Features

Frequency Analyzer video #1 for iPhone
Frequency Analyzer screenshot #2 for iPhone
Frequency Analyzer screenshot #3 for iPhone
Frequency Analyzer screenshot #4 for iPhone
Frequency Analyzer screenshot #5 for iPhone
Frequency Analyzer screenshot #6 for iPhone
Frequency Analyzer screenshot #7 for iPhone
Frequency Analyzer screenshot #8 for iPhone
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About

Transform your device into a professional audio analysis tool with real-time FFT, SPL monitoring, and advanced visualization. Record, analyze, and export high-quality audio and video data for various acoustic applications.

✓Real-time FFT analysis
✓Calibrated SPL measurement
✓High-resolution spectrum analyzer
✓Real-time waveform display
✓32-bit float audio recording
✓Synchronized video recording
✓Export WAV, CSV, images, and videos
Show original description
+2

What's New in Frequency Analyzer

2.19.6

October 30, 2026

Performance improvements

1

Subscriptions & In-App Purchases

Frequency Analyzer Pro Annual

Yearly Pro Subscription

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

User reviews

Not free

Forcing a pop up to lock in a weekly subscription every few seconds won’t increase the chances of use

집에 녹음하기 힘든 이상한 소리 나는거 집주인에게 보여주기 좋아요

내가 이상한가 나만 듣나 했는데 잡히네요

Response from developer

소중한 리뷰 감사합니다! 앱이 도움이 되셨다니 정말 기쁩니다. 앞으로도 많은 이용 부탁드립니다!

Hab und will kein pro

Ich kann nicht fortfahren sobald ich kein pro habe

Response from developer

Hallo, vielen Dank für Ihr Feedback, und entschuldigen Sie für die entstandene Verwirrung! Sie brauchen kein Pro, um die App zu nutzen: Das Pro-Angebot lässt sich jederzeit über das X in der Paywall schließen. Danach können Sie die App in der kostenlosen Version verwenden, inklusive dB-Messung und Frequenzanalyse. Auch viele Extras wie Exporte oder Einstellungsänderungen sind kostenlos enthalten, mit großzügigen Gratis-Kontingenten. Pro brauchen Sie erst, wenn Sie diese Funktionen unbegrenzt nutzen möchten. Falls Sie trotzdem nicht weiterkommen, schreiben Sie uns gerne über den Support in der App, wir helfen Ihnen weiter.

Too Soon

I opened the app for the first time and was asked for a review. At this point, I haven't used the app because of the request for the review. An app that requests a review before even using its main feature is probably not an app worth having.

Response from developer

Hi there, thanks for taking the time to write this. We're trying to balance giving users enough time to experience the app with collecting feedback from as many users as possible, which is what helps us make it better, and we take the point that in your case it came too early. Thanks again.

Maybe one of the best frequency analyzer out there, but..

This application helped me visualize some disturbances I have been experiencing in relation to sound.

There is no option for a one time lifetime unlock. I have reached out to the developer and asked if there are any plans for this option.

Response from developer

Hi there, thank you for the kind words and for the detailed feedback. We're glad the app helped you visualise the disturbances you were experiencing, that's exactly what it's built for. On a one time lifetime unlock: we don't offer one at the moment but thanks to your feedback we might add it in the future. If an annual commitment isn't what you want, there's also a monthly plan on the same screen, and it can be cancelled any time in your Apple subscription settings. Thanks again for taking the time to review.

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 advanced visualization for acoustic measurements, recording, and data export.

What are the subscription options for Frequency Analyzer?

Frequency Analyzer offers several subscription plans, including weekly and monthly options. Prices range from $2.99/P7D to $4.99/P1M, with some plans including free trial periods of 3 or 7 days.

Does Frequency Analyzer have ads?

No, Frequency Analyzer does not contain advertisements. It is a free application with optional in-app purchases for advanced features.

What devices is Frequency Analyzer compatible with?

Frequency Analyzer is currently supported on iPhones. Further platform compatibility may be added in future updates.

How accurate are the measurements from Frequency Analyzer?

Frequency Analyzer provides professional-grade audio analysis with 32-bit float processing and precision calibration tools. However, it is a consumer application for educational purposes and not a certified measurement instrument for legally compliant assessments.

Can I record audio and video with Frequency Analyzer?

Yes, Frequency Analyzer supports high-quality 32-bit float audio recording and synchronized video recording. You can overlay audio analysis directly onto your videos.

What kind of data can I export from Frequency Analyzer?

You can export your analysis data in various formats, including WAV audio files, CSV data for further processing, and high-resolution images and videos of your spectrum and waveform displays.

How often is Frequency Analyzer updated?

The latest version of Frequency Analyzer is 2.19.5, last updated on October 29, 2026. Updates typically include new features, performance improvements, and bug fixes.