# GhostScope vs spirit trace

The clearest difference is in-app purchases: spirit trace at none against GhostScope's 4. spirit trace also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. GhostScope sells 4 in-app purchases, starting at $4.99 per 7 days. spirit trace asks for nothing beyond the download.

GhostScope ships an update every 2 months, spirit trace every 3 days. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | GhostScope | spirit trace |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 7 MB | 23 MB |
| Requires iOS | 17.4 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Grima Hdez](https://appshunter.io/developer/1741481582) | [Russell Charles Hodgson](https://appshunter.io/developer/1890518787) |

## 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 |


### spirit trace

[App page](https://appshunter.io/ios/app/spirit-trace/id6806815416)

**In-app purchases:** none


## Frequently asked questions

### Is GhostScope free?

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

### Is spirit trace free?

spirit trace is free to download, with no in-app purchases.

### Do GhostScope or spirit trace have ads?

GhostScope shows ads; spirit trace does not.

### Which is updated more often, GhostScope or spirit trace?

GhostScope ships an update every 2 months, and spirit trace every 3 days. Most recently, GhostScope was updated on October 1, 2026 and spirit trace on October 5, 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.*