Spectrum Analyzer is full of fantastic advanced features you won’t find elsewhere easily!

This app offers a fast and accurate spectrum analysis suitable for both amateur hi-fi enthusiasts and professional A/V engineers. This incredibly precise, pro level tool is perfect for tuning your home cinema, car stereo, subwoofers, and more. Spectrum analyser gives insight into your sounds and deconstructs the audio spectrum, showing the levels of the various frequencies in your audio signal.
The built-in sound meter provides high-quality measurement results when measuring ambient noise levels in a multitude of real-life scenarios.

Features include-
● Octave Band Real-Time Analyzer
● FFT Plot - Fast Fourier Transform
● Smooth HD Graphics
● Multispectral Harmonic Analyzer
● Integrated Sound Level Meter (dB-A weighted)

FFT Features
● FFT size from 256 to incredible 16384
● Hold Max and (unique feature) Min peaks
● Linear and Logarithm scales
● Various window functions: Rectangle, Hanning, Hamming, Tukey, Cosine, Lanczos, Blackman
● Max frequency live tracking
● Selected frequency live tracking
● Fullscreen mode

Octave RTA features
● Bars and unique spline plot modes
● Full, 1/3, 1/6 octave modes
● Hold max mode
● Selected bar tracking.

And much more...

Please feel free to contact us with any questions, problems or ideas via e-mail

What’s New

Version 2.1.1

• With the previous version I fix a lot of old bugs but add some new. This version fixes all newly added. Now the app is stable. Sorry for inconvenience.

Please be sure to rate this new version on the App Store and leave a review.
Your feedback is greatly appreciated and helps me continue updating Spectrum Analyzer!

Ratings and Reviews

4.6 out of 5
2K Ratings

2K Ratings

jimlistens ,

Great App to Analyze a Strange Noise in Home

We had encountered a buzzing noise that came and went. The noise was coming from the ceiling my office like it was originating in attic. Was it a bee hive or hornet infestation, wind causing vibrations in eves or loose roof components or more serious issue some kind of electrical hum or buzz. I thought if only I had a spectrum analyzer I could rule out an electrical issue if the noise was 60 HZ or a 120 Hz harmonic. So I thought my phone has a microphone and it certainly could analyze sound . So I found this App for my iphone.
It showed the primary vibration was 101 HZ so I felt relieved. But what was it? The room next door was a bathroom and the noise was louder but still coming from the ceiling. So then I thought toilets can cause funny noises. I took off the tank lid and waited until the noise was loudest and touched the float arm hitch was connected to the auto shutoff valve . It was vibrating like crazy and the noise went away . But I still could not understand why the noise was coming from above. Then I thought the plumbing stack vent was just like a pipe in a pipe organ. The vibration in the tank made the column of air in the stack vent resonate.
Strangest annoying sound and plumbing issue I have ever heard of in my life. I fixed it by turning the float adjustment screw just a bit.
The technology in a smart phone seems to be unlimited.

Larshjarshon ,

Works Great

I use this to help ring out every room before performers ever get to the show. Maximizing gain before feedback is as simple as pushing the fader nice and slow until you hear the ringing start, then the app tells you exactly what you need to take out. Invaluable if you don’t have a digital mixer with a spectrum analyzer built in.

Developer Response ,

Thank you for your review. And absolutely great way of using the app.

Killertone ,

Clean Design... but wanted Line In option

It gets four stars because IF you only wanted to use the not so great built-in microphone of your device then it seems to work very well. I was actually willing to pay for a way to unlock a Line-In feature but nothing told me that the feature exists. The fact that the spectrum plot can hold the peaks is a real nice and makes your app more useful. The pop up is super annoying, but being an App developer myself...I understand how selfish people just expect a great feature rich App to be all for FREE (i gave up thinking i could be paid for all my hard work). Just for fun, you can check out my Free iPhone App FlipNshare ProVideo. I did uninstall the app only because i need Line-In feature, please let me know if it’s actually available.


Marina Polyanskaya
18 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Italian, Russian, Simplified Chinese, Spanish, Traditional Chinese, Vietnamese

Age Rating
In-App Purchases
  1. Spectrum Analyzer Pro $8.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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