# VAPolyTZFM vs FFT Spectrum Audio Analyzer

The clearest difference is price: VAPolyTZFM at $3.99 against FFT Spectrum Audio Analyzer's $6.99. FFT Spectrum Audio Analyzer's advantage is update cadence (every 4 months vs every 9 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

VAPolyTZFM costs $3.99 and FFT Spectrum Audio Analyzer $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VAPolyTZFM ships an update every 9 months, FFT Spectrum Audio Analyzer every 4 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | VAPolyTZFM | FFT Spectrum Audio Analyzer |
| --- | --- | --- |
| Price | **$3.99** | $6.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/vapolytzfm/id6747690642/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 17 MB | 8 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Togawa](https://appshunter.io/developer/1474193056) | [Yumm One](https://appshunter.io/developer/1588876379) |

## What reviewers say

### VAPolyTZFM

[App page](https://appshunter.io/ios/app/vapolytzfm/id6747690642)

This app is a polyphonic synthesizer that utilizes Through Zero FM for musical sound generation. It offers a standalone mode with Ableton Link and MIDI support, as well as an AudioUnit Extension for use with other music software. Built-in effects and iCloud Drive integration enhance its creative capabilities.

**Highlights:** Through Zero FM synthesis, AudioUnit Extension (AUv3) support, Ableton Link and MIDI connectivity, Built-in effects suite, iCloud Drive project sharing, Analog style step sequencer, Up to 8 voice polyphony

**Features:** Vision Pro support

**In-app purchases:** none


### FFT Spectrum Audio Analyzer

[App page](https://appshunter.io/ios/app/fft-spectrum-audio-analyzer/id6756638549)

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

**In-app purchases:** none


## Frequently asked questions

### Is VAPolyTZFM free?

VAPolyTZFM costs $3.99, with no in-app purchases.

### Is FFT Spectrum Audio Analyzer free?

FFT Spectrum Audio Analyzer costs $6.99, with no in-app purchases.

### Do VAPolyTZFM or FFT Spectrum Audio Analyzer have ads?

Neither VAPolyTZFM nor FFT Spectrum Audio Analyzer shows ads.

### Which is updated more often, VAPolyTZFM or FFT Spectrum Audio Analyzer?

VAPolyTZFM ships an update every 9 months, and FFT Spectrum Audio Analyzer every 4 months. Most recently, VAPolyTZFM was updated on October 26, 2026 and FFT Spectrum Audio Analyzer on October 24, 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.*