# geoTools vs Metal Detector EMF

The clearest difference is in-app purchases: geoTools at none against Metal Detector EMF's 1. geoTools also leads on review sentiment (100% vs 68%) and rating (5.0 vs 4.6). Metal Detector EMF's advantage is ratings volume (2.5K vs 3) and update cadence (every 9 months vs every 29 months). On price, ads and device support there is nothing between them.

Both are free to download. Metal Detector EMF sells 1 one-off in-app purchase. geoTools asks for nothing beyond the download.

geoTools holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Metal Detector EMF has 2.5K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of geoTools's written reviews are positive against 68% of Metal Detector EMF's.

geoTools ships an update every 29 months, Metal Detector EMF every 9 months. The most recent releases landed on October 23, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | geoTools | Metal Detector EMF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/geotools/id591458160/reviews)** | [4.6 (2.5K ratings)](https://appshunter.io/ios/app/metal-detector-emf/id1073102084/reviews) |
| Number of ratings | 3 | **2.5K** |
| Positive reviews | **100.0% of reviews** | 68.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 9 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 11 MB |
| Requires iOS | **8.1** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andre Molina](https://appshunter.io/developer/503002385) | [ExaMobile S.A.](https://appshunter.io/developer/506014841) |

## What reviewers say

### geoTools

[App page](https://appshunter.io/ios/app/geotools/id591458160)

This app provides tools for geological, geophysical, engineering, and geographic work. It helps estimate geophysical quantities like Bouguer anomaly and magnetic declination, and offers a quick coordinate converter. It's designed for professionals and enthusiasts interested in Earth Sciences.

**Highlights:** Estimate geophysical quantities, Calculate Bouguer anomaly, Estimate magnetic declination, Quick coordinate converter, Geographic to UTM conversion, UTM to geographic conversion, Uses IGRF geomagnetic model

**Features:** macOS Compatibility

**In-app purchases:** none


### Metal Detector EMF

[App page](https://appshunter.io/ios/app/metal-detector-emf/id1073102084)

This application uses your smartphone's magnetic sensor to detect nearby metal objects. It can help you find hidden metallic items, act as a treasure hunting tool, or even assist in ghost hunting by visualizing magnetic field trends. Requires a device with a magnetic sensor to function.

**Highlights:** Detects nearby metal, Measures magnetic field, Finds hidden metallic objects, Acts as a treasure hunter tool, Assists ghost hunters, Visualizes reading trends with a graph

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AdBlock - Remove ads | $1.99 | one-time |

**What reviewers like**

- 🚀 Works great
- 👍 Surprisingly accurate
- 🔍 Helpful for finding lost items
- 💡 Innovative use of phone sensors
- 🔍 Useful for locating property markers

**What reviewers complain about**

- 🐛 Inconsistent performance
- 🔍 Limited detection range
- 🔍 Only detects magnetic metals
- 🔋 Drains battery quickly

**Reported bugs**

- Settings page not functioning
- App crashes on some devices
- Inaccurate readings in certain situations

**Requested features**

- Ability to detect non-magnetic metals
- Improved sensitivity and detection range
- Option to calibrate the sensor
- Metal identification feature


## Frequently asked questions

### Is geoTools free?

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

### Is Metal Detector EMF free?

Metal Detector EMF is free to download, with in-app purchases available.

### Which has better reviews, geoTools or Metal Detector EMF?

geoTools is rated higher. geoTools averages 5.0 out of 5 from 3 ratings, while Metal Detector EMF averages 4.6 from 2.5K ratings.

### Do geoTools or Metal Detector EMF have ads?

Neither geoTools nor Metal Detector EMF shows ads.

### Which is updated more often, geoTools or Metal Detector EMF?

geoTools ships an update every 29 months, and Metal Detector EMF every 9 months. Most recently, geoTools was updated on October 23, 2026 and Metal Detector EMF on November 2, 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.*