# Silent Scan vs SpectrumAnalyzer

The clearest difference is update cadence: Silent Scan at every 3 weeks against SpectrumAnalyzer's every 2 months. Silent Scan also leads on iOS requirement (16.0 vs 26.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Silent Scan sells 1 in-app purchase, starting at $1.99 per month and SpectrumAnalyzer sells 2 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

Silent Scan ships an update every 3 weeks, SpectrumAnalyzer every 2 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Silent Scan | SpectrumAnalyzer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 35 MB | 7 MB |
| Requires iOS | **16.0** | 26.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yasuhiro Kodama](https://appshunter.io/developer/1895805086) | [Eiji Chiba](https://appshunter.io/developer/1818574673) |

## What reviewers say

### 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 |


### SpectrumAnalyzer

[App page](https://appshunter.io/ios/app/spectrumanalyzer/id6790409622)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proプラン (月額) | $0.49 | per month |
| Proプラン (買い切り永久版) | $9.99 | one-time |


## Frequently asked questions

### Is Silent Scan free?

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

### Is SpectrumAnalyzer free?

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

### Do Silent Scan or SpectrumAnalyzer have ads?

Both Silent Scan and SpectrumAnalyzer show ads.

### Which is updated more often, Silent Scan or SpectrumAnalyzer?

Silent Scan ships an update every 3 weeks, and SpectrumAnalyzer every 2 months. Most recently, Silent Scan was updated on November 5, 2026 and SpectrumAnalyzer 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.*