# ESP Challenge vs Spirit Box

The clearest difference is in-app purchases: ESP Challenge at none against Spirit Box's 3. ESP Challenge also leads on iOS requirement (15.6 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Spirit Box sells 3 in-app purchases, starting at $6.99 per month. ESP Challenge asks for nothing beyond the download.

## The numbers

| Metric | ESP Challenge | Spirit Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (15 ratings)](https://appshunter.io/ios/app/spirit-box-ghost-emf/id6779117865/reviews)** |
| Number of ratings | — | **15** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 18 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Alper Ozdil](https://appshunter.io/developer/1882639147) | [Hoang Le](https://appshunter.io/developer/1763197902) |

## What reviewers say

### ESP Challenge

[App page](https://appshunter.io/ios/app/esp-challenge/id6760099834)

**In-app purchases:** none


### Spirit Box

[App page](https://appshunter.io/ios/app/spirit-box-ghost-emf/id6779117865)

This app transforms your phone into a paranormal investigation tool, featuring a real-time EMF detector and an advanced spirit box communicator. It's designed for immersive ghost hunting, allowing you to scan electromagnetic activity and attempt spirit communication with a clean, distraction-free interface.

**Highlights:** Real-time EMF detector, Interactive EMF meter interface, Advanced spirit box communication, Dynamic signal feedback, Focused investigation interface, Simulates EVP

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Month Pass | $6.99 | per month |
| Year Pass | $39.99 | per year |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is ESP Challenge free?

ESP Challenge is free to download, with no in-app purchases.

### Is Spirit Box free?

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

### Do ESP Challenge or Spirit Box have ads?

Neither ESP Challenge nor Spirit Box shows ads.

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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.*