# GhostScope vs Threshold

The clearest difference is ads: Threshold at none against GhostScope's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. GhostScope sells 4 in-app purchases, starting at $4.99 per 7 days and Threshold sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | GhostScope | Threshold |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Size | 7 MB | 4 MB |
| Requires iOS | **17.4** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Grima Hdez](https://appshunter.io/developer/1741481582) | [Brandon Romero](https://appshunter.io/developer/1891387344) |

## What reviewers say

### GhostScope

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

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GhostScope Pro Weekly | $4.99 | per 7 days |
| GhostScope Pro Monthly | $9.99 | per month |
| GhostScope Pro Yearly | $39.99 | per year |
| GhostScope Pro Lifetime | $49.99 | one-time |


### Threshold

[App page](https://appshunter.io/ios/app/threshold-spirit-box-lab/id6783039005)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spirit Box Lab Pro | $9.99 | one-time |


## Frequently asked questions

### Is GhostScope free?

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

### Is Threshold free?

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

### Do GhostScope or Threshold have ads?

GhostScope shows ads; Threshold does not.

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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.*