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SignalSpy - Audio Oscilloscope, Frequency Spectrum Analyzer, and more icon
APP STORE

SignalSpy - Audio Oscilloscope, Frequency Spectrum Analyzer, and more

Codelle · Music · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card
Revenue a month, worldwide
Too small to estimate
Not enough chart or ratings data
New ratings
Tracking
Daily counts start building from today
Rating
0.0 of 5
0 ratings in this store
Countries it ranks in
0
was 0 on Oct 18, 2026

Revenue

Estimated from the grossing charts of Oct 25, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / MONTH · WORLDWIDE
Unranked
Not in any grossing chart, and too few ratings (0) to read its growth. Most apps at this stage earn little or nothing.
EST. LIFETIME DOWNLOADS
n/a
Estimated from ratings count
RATINGS
0
AVG RATING
n/a
PRICE
$4.99
AGE
12.2y
LAST UPDATE
4422d ago
VERSION
1.1
SIZE
1 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
0 / 30
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · APP STORE ONLY EST
Show daily values
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Best rank Sep 26, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
0.0 reviews / week
  • Recent reviews average2.3 stars
  • Recent 1 and 2 star share75%
From the latest 8 written reviews, covering 4371 days.
RELEASE CADENCE
0 updates in 90 days
  • Typical gap between releases14 days
From the last 2 versions listed on the App Store.

What users say

Latest reviews, United States App Store.

★★★★★Oct 3, 2023
Out of date...

The App crashes when a Bluetooth microphone is plugged in. No updates for the last 9 years. Apple: Take this thing off your store.

★★★★★Dec 25, 2021
Wasted my money

Nowhere syas not comparable with any apple software. To be used with macbook pro mic input, the only problem is that mbp m1 does not have a mic input. Please apple make customers aware that this product is NOT comparable with m1 macbook pro.

★★★★★Apr 15, 2021
Nice, simple and clean user interface

I've been using this app every couple of times a year for a couple of years now. Sure, I've had some trouble at times with Audio inputs and configuration, but I can say the same of some really expensive professional audio apps. The real question is, what is this app for? If you're trying to do some fancy engineering work, yeah, the Oscilloscope is missing many standard features. If you're using is for musical purposes, same thing... Where are my musical notes? while it may be lacking in many advanced features, It does provide a very clean set of basic tools. I like to muck around with my music synth, and I can get a very quick idea of what my filter is doing or how my oscillator shape selection is giving me more or less harmonic content. My daughter used the app to do a science fair project and it worked brilliantly. I just want to pour some love on this app. It gets way more criticism than it deserves for a five buck app. Well worth the money IMO

★★★★★Oct 4, 2018
Terrible input override

This app will always override the input to 16bits/44.1KHz. It is currently plugged into an external USB/Optical receiving data @48KHz/24bits and as soon as the app opens, it resets the audio interface to 44.1K/16 causing the data to be visualized through a software ASRC. This is unacceptable. If forcing the output to anything else than 44.1KHz the app stops working and if forcing the datapath to 24bits instead of 16 (using OSX midi devices setup app). the data rolls over (it's displaying the data modulo 16bits as it is incapable of handling more). This is simply un-acceptable.

★★★★★Oct 29, 2017
Crashes almost immediately

As soon as you make a selection, the app crashes.

★★★★★Nov 5, 2015
Works great and very fast spectrogram

This app is working great for me as a real time spectrogram visualization. Very smooth, much better than the spectrogram than audacity, which is obviously implemented in a much less efficient manner. As for the accuracy concern of other reviews, I’m not sure why I don’t seem to have that issue.

Store screenshots

ScreenshotScreenshotScreenshot

App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

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Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

tools3audio2oscilloscope2level2configurable2

What's new in 1.1

This version brings some important bug fixes and improvements: - A completely rewritten rendering engine with greatly improved performance. Now you can open a lot of analyser windows next to each other without a drop in frame rate. - Improved appearance of the oscilloscope and spectrum analyser on Retina displays. - We fixed a crash caused by some higher end audio devices having a default sample rate that is not 44.1 KHz.

Released Sep 2, 2014. Current version shipped Sep 16, 2014.

Store description

SignalSpy is a suite of powerful tools that let you analyze audio signals. Included are an oscilloscope, a spectrum analyzer, level indicator and spectrogram. All tools are built for extreme accuracy and thus can be used in studio applications. Many of the tools are configurable to adapt them to your needs. Features: - Four highly accurate audio signal analyzers. - The oscilloscope can be synchronized to your waveform using a trigger level. - Frequency scale configurable between logarithmic and linear. - Very fast screen updating giving you a true real-time display.

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