Live Spectrogram vs Audio Spectrum Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Real-time audio visualization
- Frequency analysis
- Time-based spectrum display
- Intensity shown by color
- Singing voice perfection
- Animal call analysis
- Sound source identification
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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!
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | Live Spectrogram | Audio Spectrum Viewer |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 4.8 (6 ratings) — better | 4.3 (4 ratings) |
| Positive reviews | 62.5% of reviews — better | 50.0% of reviews |
| Number of ratings | 6 — better | 4 |
| Update frequency | Every 31 months — better | Every 72 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 15 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Krueger Systems, Inc. | Steve Glenner |
Customer experience
Live Spectrogram
Audio Spectrum Viewer
In-app purchases
Live Spectrogram
No in-app purchases
Audio Spectrum Viewer
No in-app purchases
Questions
Is Live Spectrogram free?
Is Audio Spectrum Viewer free?
Which has better reviews, Live Spectrogram or Audio Spectrum Viewer?
Do Live Spectrogram or Audio Spectrum Viewer have ads?
Which is updated more often, Live Spectrogram or Audio Spectrum Viewer?
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