Comparison

Live Spectrogram vs Audio Spectrum Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Live Spectrogram

Visualize sound frequencies in real-time with this tool. It displays audio intensity across time and frequency using color, helping you perfect singing, analyze animal calls, or locate household noises.

Highlights
  • Real-time audio visualization
  • Frequency analysis
  • Time-based spectrum display
  • Intensity shown by color
  • Singing voice perfection
  • Animal call analysis
  • Sound source identification
Features
Read full description

Visualize audio with this handy tool. It displays the frequencies of sound around you over time. The horizontal axis is time, the vertical is frequency, and the intensity of frequencies is shown using pretty shades of red. Use it to: Perfect your singing voice Analyze the call of animals Identify and locate annoying sounds around your house Learn about the world of frequency analysis I hope you enjoy this handy little tool!

About

Audio Spectrum Viewer

Visualize the frequency content of your live audio environment with a dynamic waterfall spectrogram. Analyze sound systems, create audio fingerprints of environmental sounds, and save spectrograms with custom captions. Capture audio in the background for simultaneous recording and photography.

Highlights
  • Live audio frequency visualization
  • Waterfall/spectrogram display
  • Speaker and sound system analysis
  • Environmental sound fingerprinting
  • User-selectable gain and sample rate
  • Save spectrograms with captions
  • Save audio clips for playback
Features
Read full description

Audio Spectrum Viewer is an easy to use app which will show the frequency content of your live audio environment in an easy to understand waterfall / spectrogram. This tool can be used to analyze the performance of speakers and sound systems, and to create audio fingerprint images of environmental sounds such as bird songs and other animal sounds. Audio Spectrum Viewer is a powerful tool with user-selectable gain, sample rate and other parameters to optimize for a particular setting. Spectrograms can be saved to the camera roll with a timestamped and customizable caption and the audio clips can be saved for later playback. Audio can be captured in the background so you can simultaneously take photos of birds while analyzing their sounds.

Screenshots

Live Spectrogram4 screens
Audio Spectrum Viewer4 screens

Verdict

The call

The clearest difference is rating: Live Spectrogram at 4.8 against Audio Spectrum Viewer's 4.3. Live Spectrogram also leads on review sentiment (63% vs 50%) and update cadence (every 31 months vs every 72 months). Audio Spectrum Viewer's advantage is price ($0.99 vs $1.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Live Spectrogram costs $1.99 and Audio Spectrum Viewer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Live Spectrogram holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews point the same way: 63% of Live Spectrogram's written reviews are positive against 50% of Audio Spectrum Viewer's.

UpkeepUpdate frequency

Live Spectrogram ships an update every 31 months, Audio Spectrum Viewer every 72 months. The most recent releases landed on September 18, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
Live Spectrogram versus Audio Spectrum Viewer: the parameters behind the verdict, then further details
ParameterLive SpectrogramAudio Spectrum Viewer
Price$1.99$0.99 — better
Rating4.8 (6 ratings) — better4.3 (4 ratings)
Positive reviews62.5% of reviews — better50.0% of reviews
Number of ratings6 — better4
Update frequencyEvery 31 months — betterEvery 72 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.6
Further details — not scored
Size15 MB2 MB
Age rating4+4+
DeveloperKrueger Systems, Inc.Steve Glenner

Customer experience

Live Spectrogram

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive62.5%
Neutral12.5%
Negative25.0%

Audio Spectrum Viewer

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Live Spectrogram

No in-app purchases

None

Audio Spectrum Viewer

No in-app purchases

Questions

Is Live Spectrogram free?
Live Spectrogram costs $1.99, with no in-app purchases.
Is Audio Spectrum Viewer free?
Audio Spectrum Viewer costs $0.99, with no in-app purchases.
Which has better reviews, Live Spectrogram or Audio Spectrum Viewer?
Live Spectrogram is rated higher. Live Spectrogram averages 4.8 out of 5 from 6 ratings, while Audio Spectrum Viewer averages 4.3 from 4 ratings.
Do Live Spectrogram or Audio Spectrum Viewer have ads?
Neither Live Spectrogram nor Audio Spectrum Viewer shows ads.
Which is updated more often, Live Spectrogram or Audio Spectrum Viewer?
Live Spectrogram ships an update every 31 months, and Audio Spectrum Viewer every 72 months. Most recently, Live Spectrogram was updated on September 18, 2026 and Audio Spectrum Viewer on October 11, 2026.

Other comparisons