# SpectraScan vs Ghost Sonar Detector

The clearest difference is price: SpectraScan at Free against Ghost Sonar Detector's $0.49. Ghost Sonar Detector's advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 5 months). On ads, device support and iOS requirement there is nothing between them.

SpectraScan is free to download; Ghost Sonar Detector costs $0.49 up front. SpectraScan sells 1 one-off in-app purchase. Ghost Sonar Detector asks for nothing beyond the download.

SpectraScan ships an update every 5 months, Ghost Sonar Detector every 3 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SpectraScan | Ghost Sonar Detector |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 3 MB | 6 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 9+ |
| Developer | [Gregory Hogan](https://appshunter.io/developer/1835199521) | [satoshi amasaki](https://appshunter.io/developer/1891268722) |

## What reviewers say

### SpectraScan

[App page](https://appshunter.io/ios/app/spectrascan-ghost-detector/id6761769203)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spectra-Scan Unlocked | $4.99 | one-time |


### Ghost Sonar Detector

[App page](https://appshunter.io/ios/app/ghost-sonar-detector/id6771117031)

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

**In-app purchases:** none


## Frequently asked questions

### Is SpectraScan free?

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

### Is Ghost Sonar Detector free?

Ghost Sonar Detector costs $0.49, with no in-app purchases.

### Do SpectraScan or Ghost Sonar Detector have ads?

Neither SpectraScan nor Ghost Sonar Detector shows ads.

### Which is updated more often, SpectraScan or Ghost Sonar Detector?

SpectraScan ships an update every 5 months, and Ghost Sonar Detector every 3 weeks. Most recently, SpectraScan was updated on October 26, 2026 and Ghost Sonar Detector 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.*