# Oscilloscope & Spectrogram vs Spectrum AUv3 FFT Visualizer

The clearest difference is update cadence: Oscilloscope & Spectrogram at every 4 days against Spectrum AUv3 FFT Visualizer's every 12 months. Oscilloscope & Spectrogram also leads on chart position (#199 vs unranked) and iOS requirement (12.0 vs 15.0). Spectrum AUv3 FFT Visualizer's advantage is price ($0.99 vs $5.99). On ads, in-app purchases and device support there is nothing between them.

Oscilloscope & Spectrogram costs $5.99 and Spectrum AUv3 FFT Visualizer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oscilloscope & Spectrogram ships an update every 4 days, Spectrum AUv3 FFT Visualizer every 12 months. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Oscilloscope & Spectrogram | Spectrum AUv3 FFT Visualizer |
| --- | --- | --- |
| Price | $5.99 | **$0.99** |
| Rating | **[4.6 (28 ratings)](https://appshunter.io/ios/app/oscilloscope-and-spectrogram/id1525484137/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 12 months |
| Monetization | Paid | — |
| Best chart rank | **#199** | — |
| Size | 3 MB | 10 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) |

## What reviewers say

### Oscilloscope & Spectrogram

[App page](https://appshunter.io/ios/app/oscilloscope-and-spectrogram/id1525484137)

**Currently charting:** #199 Top Paid · Music (US App Store)

Analyze audio in real-time with detailed oscilloscope and spectrogram views. Pause, scroll, and zoom to precisely identify frequencies, notes, and sound events. Offers advanced triggering and a unique Bark-frequency scale for detailed analysis.

**Highlights:** Real-time oscilloscope and spectrogram, Pause and scroll audio history, Pinch-to-zoom functionality, Frequency and MIDI note identification, Stereo and mono views, Trigger with lookahead

**Features:** Vision Pro support

**In-app purchases:** none


### Spectrum AUv3 FFT Visualizer

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

**In-app purchases:** none


## Frequently asked questions

### Is Oscilloscope & Spectrogram free?

Oscilloscope & Spectrogram costs $5.99, with no in-app purchases.

### Is Spectrum AUv3 FFT Visualizer free?

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

### Do Oscilloscope & Spectrogram or Spectrum AUv3 FFT Visualizer have ads?

Neither Oscilloscope & Spectrogram nor Spectrum AUv3 FFT Visualizer shows ads.

### Which is updated more often, Oscilloscope & Spectrogram or Spectrum AUv3 FFT Visualizer?

Oscilloscope & Spectrogram ships an update every 4 days, and Spectrum AUv3 FFT Visualizer every 12 months. Most recently, Oscilloscope & Spectrogram was updated on September 17, 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.*