# BooAlert vs Ghost Science M3

The clearest difference is price: BooAlert at Free against Ghost Science M3's $10.99. BooAlert also leads on device support (3 vs 1) and iOS requirement (9.0 vs 18.0). Ghost Science M3's advantage is rating (4.6 vs 3.4) and in-app purchases (none vs 1). On ads there is nothing between them.

BooAlert is free to download; Ghost Science M3 costs $10.99 up front. BooAlert sells 1 one-off in-app purchase. Ghost Science M3 asks for nothing beyond the download.

Ghost Science M3 holds the better App Store score, 4.6 against 3.4. That said, the two scores are not equally well evidenced: Ghost Science M3 has 2.7K ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 44% of BooAlert's written reviews are positive against 74% of Ghost Science M3's.

BooAlert ships an update every 31 months, Ghost Science M3 every 5 weeks. The most recent releases landed on June 11, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | BooAlert | Ghost Science M3 |
| --- | --- | --- |
| Price | **Free** | $10.99 |
| Rating | [3.4 (15 ratings)](https://appshunter.io/ios/app/booalert/id615345698/reviews) | **[4.6 (2.7K ratings)](https://appshunter.io/ios/app/ghost-science-m3/id1360656789/reviews)** |
| Number of ratings | 15 | **2.7K** |
| Positive reviews | 43.7% of reviews | **73.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#2** |
| Size | 85 MB | 331 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [booalert llc](https://appshunter.io/developer/615345701) | [Michael Weber](https://appshunter.io/developer/349078052) |

## What reviewers say

### BooAlert

[App page](https://appshunter.io/ios/app/booalert/id615345698)

Explore your surroundings using your device's compass to detect magnetic fields. Enhance your experience with night vision and EVP features. Includes a flashlight for dark environments.

**Highlights:** EMF, NVG, & EVP detection, NVG mode with screenshot capture, EVP recording, playback, and sharing, Adjustable EMF sensitivity, Built-in flashlight

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Removal | $1.99 | one-time |


### Ghost Science M3

[App page](https://appshunter.io/ios/app/ghost-science-m3/id1360656789)

**Currently charting:** #2 Top Paid · Entertainment (US App Store)

This advanced paranormal investigation toolkit utilizes cutting-edge technology to detect and visualize potential supernatural activity. Features include infrared laser grid imaging, AI-driven figure detection, real-time audio analysis for spirit communication, and environmental monitoring.

**Highlights:** Infrared laser grid imaging with AI figure detection, Spirit Box with real-time audio analysis, LiDAR-enabled spatial mapping, Environmental monitoring for paranormal phenomena, EMF detection and visualization, EVP and ITC communication tools

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Useful paranormal investigation tools
- 🚀 Comprehensive set of features
- 💡 Innovative technology
- 🔒 Accurate sensor readings

**What reviewers complain about**

- 🐛 Glitches and bugs
- 🔋 Compatibility issues with older devices
- 🤔 Unclear instructions and guidance
- 🤷‍♀️ Questionable reliability of some features

**Reported bugs**

- Lidar feature not working
- EVP recordings not saving
- Frequent app crashes
- Compatibility issues with certain iOS versions

**Requested features**

- Add ability to record and playback EVP sessions
- Improve ghost box functionality
- Provide more detailed information on sensor data
- Allow customization of the dashboard


## Frequently asked questions

### Is BooAlert free?

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

### Is Ghost Science M3 free?

Ghost Science M3 costs $10.99, with no in-app purchases.

### Which has better reviews, BooAlert or Ghost Science M3?

Ghost Science M3 is rated higher. BooAlert averages 3.4 out of 5 from 15 ratings, while Ghost Science M3 averages 4.6 from 2.7K ratings.

### Do BooAlert or Ghost Science M3 have ads?

Neither BooAlert nor Ghost Science M3 shows ads.

### Which is updated more often, BooAlert or Ghost Science M3?

BooAlert ships an update every 31 months, and Ghost Science M3 every 5 weeks. Most recently, BooAlert was updated on June 11, 2026 and Ghost Science M3 on September 26, 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.*