# Sound Amp Pro vs GhostScope

The clearest difference is in-app purchases: Sound Amp Pro at none against GhostScope's 4. Sound Amp Pro also leads on ads (none vs shown) and update cadence (weekly vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. GhostScope sells 4 in-app purchases, starting at $0.99 per 7 days. Sound Amp Pro asks for nothing beyond the download.

Sound Amp Pro ships an update weekly, GhostScope monthly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Sound Amp Pro | GhostScope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Monthly |
| Size | 21 MB | 8 MB |
| Requires iOS | 18.0 | **17.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Omar M Abu sharifa](https://appshunter.io/developer/1754272665) | [Grima Hdez](https://appshunter.io/developer/1741481582) |

## What reviewers say

### Sound Amp Pro

[App page](https://appshunter.io/ios/app/sound-amp-pro/id6759881507)

**Features:** macOS Compatibility

**In-app purchases:** none


### GhostScope

[App page](https://appshunter.io/ios/app/ghostscope-ghost-hunt-kit/id6773637623)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GhostScope Pro Weekly | $0.99 | per 7 days |
| GhostScope Pro Monthly | $1.99 | per month |
| GhostScope Pro Yearly | $2.99 | per year |
| GhostScope Pro Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is Sound Amp Pro free?

Sound Amp Pro is free to download, with no in-app purchases.

### Is GhostScope free?

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

### Do Sound Amp Pro or GhostScope have ads?

GhostScope shows ads; Sound Amp Pro does not.

### Which is updated more often, Sound Amp Pro or GhostScope?

Sound Amp Pro ships an update weekly, and GhostScope monthly. Most recently, Sound Amp Pro was updated on October 28, 2026 and GhostScope on October 29, 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.*