# Spectrum Analyzer vs Spectrum AUv3 FFT Visualizer

The clearest difference is price: Spectrum Analyzer at Free against Spectrum AUv3 FFT Visualizer's $0.99. Spectrum Analyzer also leads on update cadence (fortnightly vs every 12 months). Spectrum AUv3 FFT Visualizer's advantage is in-app purchases (none vs 13) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Spectrum Analyzer is free to download; Spectrum AUv3 FFT Visualizer costs $0.99 up front. Spectrum Analyzer sells 13 in-app purchases, starting at $4.99 per 7 days. Spectrum AUv3 FFT Visualizer asks for nothing beyond the download.

Spectrum Analyzer ships an update fortnightly, Spectrum AUv3 FFT Visualizer every 12 months. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Spectrum Analyzer | Spectrum AUv3 FFT Visualizer |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.2 (197 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-spectrogram/id981810895/reviews)** | — |
| Number of ratings | **197** | — |
| Positive reviews | 5.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 12 months |
| Monetization | Freemium | — |
| Size | 132 MB | 10 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Music Breath](https://appshunter.io/developer/1140008995) | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) |

## What reviewers say

### Spectrum Analyzer

[App page](https://appshunter.io/ios/app/spectrum-analyzer-spectrogram/id981810895)

Visualize audio frequencies with real-time analysis. Features include a sound level meter, multichannel harmonic analysis, and adjustable graphical representations. Gain insights into your sound environment with advanced tools.

**Highlights:** Sound level meter, Multichannel harmonic analysis, Adjustable graphics, AI-powered sound source analyzer, Real-time analysis, FFT analysis

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pitch Finder: Audio Visualizer | $4.99 | per 7 days |
| Pitch Finder: Audio Visualizer | $9.99 | per month |
| One Month Sale | $9.99 | per month |
| 1 Week Subscription | $9.99 | per 7 days |
| 1 Year Sub. with discount | $19.99 | per year |
| 1 Month Subscription | $19.99 | per month |
| 3 Month Subscription | $25.99 | per 3 months |
| 1 Year Subscription | $39.99 | per year |
| 2 months subscription | $39.99 | per 2 months |
| No Ads | $9.99 | one-time |
| Additional Settings Controls | $15.99 | one-time |
| Full Pack + No Ads | $19.99 | one-time |
| Get More | $19.99 | one-time |

**What reviewers like**

- ✅ Accurate frequency identification
- ✅ Clear and easy-to-read display
- ✅ Useful noise floor setup feature
- ✅ Works well when ads are removed

**What reviewers complain about**

- 💰 Extremely aggressive monetization strategy
- 📢 Excessive and intrusive ads
- 🔊 Loud ads that ignore device mute settings
- 🚫 Requires subscription/payment to access core features
- 😤 Deceptive purchase practices and accidental charges

**Reported bugs**

- App becomes unusable after iOS 16 update
- Crashes immediately on iPhone 5 with iOS 7
- Cannot exit app on iPhone X without reboot
- App freezes when changing settings or views
- Inaccurate frequency readings

**Requested features**

- Audio file import functionality
- Customizable background colors for chroma key compatibility
- Ability to record audio instead of only analyzing
- Better documentation and help files
- Improved sensitivity for detecting soft sounds


### Spectrum AUv3 FFT Visualizer

[App page](https://appshunter.io/ios/app/spectrum-auv3-fft-visualizer/id6737164438)

**In-app purchases:** none


## Frequently asked questions

### Is Spectrum Analyzer free?

Spectrum Analyzer is free to download, with in-app purchases available.

### Is Spectrum AUv3 FFT Visualizer free?

Spectrum AUv3 FFT Visualizer costs $0.99, with no in-app purchases.

### Do Spectrum Analyzer or Spectrum AUv3 FFT Visualizer have ads?

Spectrum Analyzer shows ads; Spectrum AUv3 FFT Visualizer does not.

### Which is updated more often, Spectrum Analyzer or Spectrum AUv3 FFT Visualizer?

Spectrum Analyzer ships an update fortnightly, and Spectrum AUv3 FFT Visualizer every 12 months. Most recently, Spectrum Analyzer was updated on September 24, 2026 and Spectrum AUv3 FFT Visualizer on September 20, 2026.

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