# shortReverse II vs FFT AUv3 Visualizer

The clearest difference is update cadence: shortReverse II at every 2 days against FFT AUv3 Visualizer's every 8 months. shortReverse II also leads on iOS requirement (12.0 vs 15.0). FFT AUv3 Visualizer's advantage is price ($0.99 vs $3.99). On ads, in-app purchases and device support there is nothing between them.

shortReverse II costs $3.99 and FFT AUv3 Visualizer $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

shortReverse II ships an update every 2 days, FFT AUv3 Visualizer every 8 months. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | shortReverse II | FFT AUv3 Visualizer |
| --- | --- | --- |
| Price | $3.99 | **$0.99** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fft-auv3-visualizer/id6746331702/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 8 months |
| Monetization | — | Paid |
| Size | 14 MB | 12 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Satoshi Kajii](https://appshunter.io/developer/1777441634) | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) |

## What reviewers say

### shortReverse II

[App page](https://appshunter.io/ios/app/shortreverse-ii/id6745790955)

**In-app purchases:** none


### FFT AUv3 Visualizer

[App page](https://appshunter.io/ios/app/fft-auv3-visualizer/id6746331702)

This real-time spectral analyzer visualizes audio into spectrograms with high precision. It offers advanced features like mel-scale mapping and intelligent color coding to help musicians and audio engineers analyze sound frequencies for mixing, mastering, and sound design.

**Highlights:** Real-time spectral analysis, High-resolution 4096-sample FFT, Mel-scale frequency mapping, 90dB dynamic range with intelligent color mapping, Resizable interface, 60Hz display with 75% overlap

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is shortReverse II free?

shortReverse II costs $3.99, with no in-app purchases.

### Is FFT AUv3 Visualizer free?

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

### Do shortReverse II or FFT AUv3 Visualizer have ads?

Neither shortReverse II nor FFT AUv3 Visualizer shows ads.

### Which is updated more often, shortReverse II or FFT AUv3 Visualizer?

shortReverse II ships an update every 2 days, and FFT AUv3 Visualizer every 8 months. Most recently, shortReverse II was updated on October 8, 2026 and FFT AUv3 Visualizer on October 1, 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.*