# Live Spectrogram vs Audio Spectrum Viewer

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.

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.

## The numbers

| Metric | Live Spectrogram | Audio Spectrum Viewer |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/live-spectrogram/id630831185/reviews)** | [4.3 (4 ratings)](https://appshunter.io/ios/app/audio-spectrum-viewer/id1525023447/reviews) |
| Number of ratings | **6** | 4 |
| Positive reviews | **62.5% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 31 months** | Every 72 months |
| Monetization | Paid | Paid |
| Size | 15 MB | 2 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Krueger Systems, Inc.](https://appshunter.io/developer/299293363) | [Steve Glenner](https://appshunter.io/developer/1518671062) |

## What reviewers say

### Live Spectrogram

[App page](https://appshunter.io/ios/app/live-spectrogram/id630831185)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Audio Spectrum Viewer

[App page](https://appshunter.io/ios/app/audio-spectrum-viewer/id1525023447)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*