# SP Music Box vs Spirit Box EMF Ghost Detector

The clearest difference is review sentiment: SP Music Box at 100% against Spirit Box EMF Ghost Detector's 52%. SP Music Box also leads on rating (5.0 vs 4.1) and in-app purchases (none vs 5). Spirit Box EMF Ghost Detector's advantage is price (Free vs $2.99) and update cadence (every 6 days vs every 5 months). On ads there is nothing between them.

Spirit Box EMF Ghost Detector is free to download; SP Music Box costs $2.99 up front. Spirit Box EMF Ghost Detector sells 5 in-app purchases, starting at $4.99 per 7 days. SP Music Box asks for nothing beyond the download.

SP Music Box holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Spirit Box EMF Ghost Detector has 503 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of SP Music Box's written reviews are positive against 52% of Spirit Box EMF Ghost Detector's.

SP Music Box ships an update every 5 months, Spirit Box EMF Ghost Detector every 6 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | SP Music Box | Spirit Box EMF Ghost Detector |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sp-music-box/id6504913402/reviews)** | [4.1 (503 ratings)](https://appshunter.io/ios/app/spirit-box-emf-ghost-detector/id6741384006/reviews) |
| Number of ratings | 1 | **503** |
| Positive reviews | **100.0% of reviews** | 51.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | **Paid** | Subscription |
| Best chart rank | **#190** | — |
| Size | 9 MB | 61 MB |
| Requires iOS | 17.0 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 9+ | 9+ |
| Developer | [Haunted Scotland Investigates LTD](https://appshunter.io/developer/1735305312) | [Boss Web SRL](https://appshunter.io/developer/1839514881) |

## What reviewers say

### SP Music Box

[App page](https://appshunter.io/ios/app/sp-music-box/id6504913402)

**Currently charting:** #190 Top Paid · Entertainment (US App Store)

This app uses your phone's sensors to detect paranormal activity by alerting you to EMF fluctuations, motion, and magnetic heading changes. It plays sounds and lights up the screen when sensors are triggered, logging events for later review.

**Highlights:** EMF fluctuation detection, Motion and rotation sensing, Magnetic heading changes, Customizable alert sounds, Sensor activation logging, Real-time sensor status display

**In-app purchases:** none


### Spirit Box EMF Ghost Detector

[App page](https://appshunter.io/ios/app/spirit-box-emf-ghost-detector/id6741384006)

This app offers advanced tools for paranormal investigation and spirit communication. It features phoneme-based audio, professional sound banks, real-time audio effects, and tracking tools to aid in EVP detection and immersive spirit interaction.

**Highlights:** Phoneme-based audio for spirit communication, Professional sound banks and white noise, Real-time echo and reverb audio effects, Radar and tracker tools for energy monitoring, Mute switch detection alerts, EVP tracking and paranormal research

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Monthly Plan | $9.99 | per month |
| Yearly Plan | $9.99 | per year |
| Special Offer | $14.99 | one-time |
| Lifetime Plan | $29.99 | one-time |

**What reviewers like**

- 🎯 Accurate and contextual responses to questions
- 🎨 Clean and simple user interface design
- 🔊 Natural-sounding audio without distortion
- ✨ Engaging and atmospheric experience for paranormal investigations
- 📱 Easy to use and intuitive controls

**What reviewers complain about**

- 💰 Aggressive paywall blocking all functionality
- 🚫 Misleading free version claims with mandatory subscription
- 🔄 Repetitive sounds and looping audio patterns
- 📢 Multiple subscription pop-ups interrupting user experience
- ❌ Non-functional even after purchasing subscription

**Reported bugs**

- Subscription pop-ups appearing repeatedly and blocking functionality
- App becomes non-functional after subscription purchase
- Microphone access not requested but app responds as if listening
- Magnetic field interference causing false responses
- App crashes or stops working after updates

**Requested features**

- Free trial period before requiring payment
- Adjustable sweep speed settings
- Pause functionality for audio playback
- Customer support contact information
- Clear disclosure of subscription requirements in app description


## Frequently asked questions

### Is SP Music Box free?

SP Music Box costs $2.99, with no in-app purchases.

### Is Spirit Box EMF Ghost Detector free?

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

### Which has better reviews, SP Music Box or Spirit Box EMF Ghost Detector?

SP Music Box is rated higher. SP Music Box averages 5.0 out of 5 from 1 ratings, while Spirit Box EMF Ghost Detector averages 4.1 from 503 ratings.

### Do SP Music Box or Spirit Box EMF Ghost Detector have ads?

Neither SP Music Box nor Spirit Box EMF Ghost Detector shows ads.

### Which is updated more often, SP Music Box or Spirit Box EMF Ghost Detector?

SP Music Box ships an update every 5 months, and Spirit Box EMF Ghost Detector every 6 days. Most recently, SP Music Box was updated on October 30, 2026 and Spirit Box EMF Ghost Detector on October 30, 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.*