# Spirit Box vs Necrometer

The clearest difference is price: Spirit Box at Free against Necrometer's $1.99. Spirit Box also leads on ratings volume (56 vs 4) and rating (4.2 vs 4.0). Necrometer's advantage is in-app purchases (none vs 7) and ads (none vs shown). On review sentiment, update cadence, device support and iOS requirement there is nothing between them.

Spirit Box is free to download; Necrometer costs $1.99 up front. Spirit Box sells 7 in-app purchases, starting at $2.99 per 7 days. Necrometer asks for nothing beyond the download.

Spirit Box holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: Spirit Box has 56 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Spirit Box ships an update weekly, Necrometer every 9 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Spirit Box | Necrometer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.2 (56 ratings)](https://appshunter.io/ios/app/spirit-box-evp-ghost-detector/id6759580040/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/necrometer-ghost-detector-emf/id6770125558/reviews) |
| Number of ratings | **56** | 4 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 558 MB | 43 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 9+ | 9+ |
| Developer | [Cloud Motion Lab LLC](https://appshunter.io/developer/1866865109) | [Mert Can Oral](https://appshunter.io/developer/1896054568) |

## What reviewers say

### Spirit Box

[App page](https://appshunter.io/ios/app/spirit-box-evp-ghost-detector/id6759580040)

This app uses your phone's magnetometer to detect electromagnetic anomalies and translate them into spirit voices and EVP fragments. Explore paranormal encounters with ghost files and customize your investigation with different scanner skins and voice modes. Record and share your findings for entertainment.

**Highlights:** Real magnetometer EMF detection, Spirit voice and EVP generation, 3 scanner skins, 3 voice processing modes, 30 Ghost Files with nightly stories, Session recording and sharing, Offline functionality

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $2.99 | per 7 days |
| Pro Weekly | $2.99 | per 7 days |
| Pro Weekly | $3.99 | per 7 days |
| Pro Weekly | $4.99 | per 7 days |
| Yearly Pro | $19.99 | per year |
| Lifetime Pro - Offer | $4.99 | one-time |
| Lifetime | $29.99 | one-time |


### Necrometer

[App page](https://appshunter.io/ios/app/necrometer-ghost-detector-emf/id6770125558)

Transform your device into a paranormal investigation tool. This app simulates ghost detection, EMF scanning, and spirit communication using your phone's sensors and real-time signal generation for an immersive experience.

**Highlights:** EMF Scanner & Ghost Detector, Spirit Box & ITC Communication, EVP Recorder & Audio Scanner, Paranormal Investigation Sessions, Customization & Atmosphere

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

**In-app purchases:** none


## Frequently asked questions

### Is Spirit Box free?

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

### Is Necrometer free?

Necrometer costs $1.99, with no in-app purchases.

### Which has better reviews, Spirit Box or Necrometer?

Spirit Box is rated higher. Spirit Box averages 4.2 out of 5 from 56 ratings, while Necrometer averages 4.0 from 4 ratings.

### Do Spirit Box or Necrometer have ads?

Spirit Box shows ads; Necrometer does not.

### Which is updated more often, Spirit Box or Necrometer?

Spirit Box ships an update weekly, and Necrometer every 9 days. Most recently, Spirit Box was updated on November 7, 2026 and Necrometer on November 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.*