Spectrogram

Name: Spectrogram
Availability: InStock
Rating: 3.277777671813965 (53 reviews)
Author: DigiVista

DigiVista

3.3

53 reviews

Everyone

10K+

Downloads

Everyone

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About this app

This app uses a Fast Fourier Transform (FFT) to analyse the sound picked up by the device's microphone in real time.

It then displays the results in the form of a spectrogram. Try whistling some notes to see the effect.

Also featuring a frequency and musical note detector, displayed at the top left of the screen.

Updated on

Feb 6, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.

No data shared with third parties

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No data collected

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Ratings and reviews

3.2

45 reviews

Šarūnas Šutėnas

June 3, 2026

It's exactly what I needed, but I need to zoom in to 0-100Hz range, which is not possible, so I can't use it.

Danilo Leite

May 31, 2026

Very simple, simply works, no ads, no menu, nothing. Beautiful. I'd love to change some settings like the scale of frequency (zoom and log/linear/etc). And the Rms etc to tune for better time VS freq resolution.

DigiVista

July 1, 2026

Thankyou Danilo for your review of our app, its much appreciated! Yes to be able to change the scale and zoom are a couple of features we'd like to work on in a future release.

scott “theᴇᴠɪʟone” keeler

October 27, 2021

Excellent app for analysis of audio whether it's music or sounds in a shop it would be better if it allowed you to change the colors for different locations.

2 people found this review helpful

DigiVista

January 31, 2022

Hi Scott, thanks for your review, its much appreciated!