# Spectrum AUv3 FFT Visualizer vs ToneGen PlusMinus

The clearest difference is price: ToneGen PlusMinus at Free against Spectrum AUv3 FFT Visualizer's $0.99. ToneGen PlusMinus also leads on update cadence (every 3 months vs every 12 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ToneGen PlusMinus is free to download; Spectrum AUv3 FFT Visualizer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Spectrum AUv3 FFT Visualizer ships an update every 12 months, ToneGen PlusMinus every 3 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Spectrum AUv3 FFT Visualizer | ToneGen PlusMinus |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Size | 10 MB | 39 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) | [Dan Richardson](https://appshunter.io/developer/1723614187) |

## What reviewers say

### Spectrum AUv3 FFT Visualizer

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

**Features:** macOS Compatibility

**In-app purchases:** none


### ToneGen PlusMinus

[App page](https://appshunter.io/ios/app/tonegen-plusminus/id6758056304)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spectrum AUv3 FFT Visualizer free?

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

### Is ToneGen PlusMinus free?

ToneGen PlusMinus is free to download, with no in-app purchases.

### Do Spectrum AUv3 FFT Visualizer or ToneGen PlusMinus have ads?

Neither Spectrum AUv3 FFT Visualizer nor ToneGen PlusMinus shows ads.

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

Spectrum AUv3 FFT Visualizer ships an update every 12 months, and ToneGen PlusMinus every 3 months. Most recently, Spectrum AUv3 FFT Visualizer was updated on October 27, 2026 and ToneGen PlusMinus on October 25, 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.*