# FFT Analyzer vs Silent Scan

The clearest difference is price: Silent Scan at Free against FFT Analyzer's $4.99. Silent Scan also leads on update cadence (every 3 weeks vs every 4 months). FFT Analyzer's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Silent Scan is free to download; FFT Analyzer costs $4.99 up front. Silent Scan sells 1 in-app purchase, starting at $1.99 per month. FFT Analyzer asks for nothing beyond the download.

FFT Analyzer ships an update every 4 months, Silent Scan every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | FFT Analyzer | Silent Scan |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 3 MB | 35 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kurenz Music GbR](https://appshunter.io/developer/544695186) | [Yasuhiro Kodama](https://appshunter.io/developer/1895805086) |

## What reviewers say

### FFT Analyzer

[App page](https://appshunter.io/ios/app/fft-analyzer/id6760554712)

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

**In-app purchases:** none


### Silent Scan

[App page](https://appshunter.io/ios/app/silent-scan/id6764492794)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $1.99 | per month |


## Frequently asked questions

### Is FFT Analyzer free?

FFT Analyzer costs $4.99, with no in-app purchases.

### Is Silent Scan free?

Silent Scan is free to download, with in-app purchases available.

### Do FFT Analyzer or Silent Scan have ads?

Silent Scan shows ads; FFT Analyzer does not.

### Which is updated more often, FFT Analyzer or Silent Scan?

FFT Analyzer ships an update every 4 months, and Silent Scan every 3 weeks. Most recently, FFT Analyzer was updated on November 5, 2026 and Silent Scan on October 31, 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.*