# FFT Spectrum Audio Analyzer vs SynthStamp

The clearest difference is update cadence: SynthStamp at every 5 days against FFT Spectrum Audio Analyzer's every 4 months. SynthStamp also leads on price ($4.99 vs $6.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

FFT Spectrum Audio Analyzer costs $6.99 and SynthStamp $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FFT Spectrum Audio Analyzer ships an update every 4 months, SynthStamp every 5 days. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | FFT Spectrum Audio Analyzer | SynthStamp |
| --- | --- | --- |
| Price | $6.99 | **$4.99** |
| Rating | — | **[4.4 (12 ratings)](https://appshunter.io/ios/app/synthstamp/id6760490718/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 43.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | — | Paid |
| Size | 8 MB | 39 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Yumm One](https://appshunter.io/developer/1588876379) | [The Musicology Group, Inc.](https://appshunter.io/developer/1061725506) |

## What reviewers say

### 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


### SynthStamp

[App page](https://appshunter.io/ios/app/synthstamp/id6760490718)

Explore vintage synthesizers with fully modeled engines and familiar interfaces. Patch, save, and share your creations across devices. Features real-time effects processing and models based on iconic hardware.

**Highlights:** Fully modeled vintage synth engines, Patchable semi-modular synthesizer, Circuit-bendable sampling keyboard, Real-time effects processing, Audio Unit (AUv3) plugin support, Cross-device preset sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FFT Spectrum Audio Analyzer free?

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

### Is SynthStamp free?

SynthStamp costs $4.99, with no in-app purchases.

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

Neither FFT Spectrum Audio Analyzer nor SynthStamp shows ads.

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

FFT Spectrum Audio Analyzer ships an update every 4 months, and SynthStamp every 5 days. Most recently, FFT Spectrum Audio Analyzer was updated on October 20, 2026 and SynthStamp on October 21, 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.*