# Atlas 3D vs Metal Detector・EMF Reader

The clearest difference is in-app purchases: Atlas 3D at none against Metal Detector・EMF Reader's 1. Atlas 3D also leads on device support (3 vs 1). Metal Detector・EMF Reader's advantage is update cadence (weekly vs fortnightly). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. Metal Detector・EMF Reader sells 1 one-off in-app purchase. Atlas 3D asks for nothing beyond the download.

Atlas 3D ships an update fortnightly, Metal Detector・EMF Reader weekly. The most recent releases landed on October 1, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Atlas 3D | Metal Detector・EMF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/metal-detectoremf-reader/id6749162622/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free | Free |
| Size | 66 MB | 18 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Atlas Dedektor](https://appshunter.io/developer/1753343043) | [Yash Mandhyan](https://appshunter.io/developer/1856960217) |

## What reviewers say

### Atlas 3D

[App page](https://appshunter.io/ios/app/atlas-3d/id6504693593)

This utility app allows users to scan and visualize their surroundings in real-time or underground using specialized devices. It offers directional guidance with a built-in compass and provides tools for analyzing and sharing scan data. Users can also update device software and access a manual within the application.

**Highlights:** Real-Time Scanning mode, Underground Scanning mode (3D), Pointer mode with alerts, Integrated compass, Device software updates, Scan data analysis and sharing, User Manual

**In-app purchases:** none


### Metal Detector・EMF Reader

[App page](https://appshunter.io/ios/app/metal-detectoremf-reader/id6749162622)

Transform your iPhone into a versatile tool for detecting metal objects, locating wall studs, and measuring EMF levels. Utilize the device's built-in magnetometer for real-time insights into magnetic fields and signal strength, perfect for various DIY and utility tasks.

**Highlights:** Detect nearby metal objects, Find wall studs, screws, nails, pipes, Real-time magnetic field readings, Live EMF meter and graph visualization, Signal confidence indicator, Axis-based directional detection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $2.99 | one-time |


## Frequently asked questions

### Is Atlas 3D free?

Atlas 3D is free to download, with no in-app purchases.

### Is Metal Detector・EMF Reader free?

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

### Do Atlas 3D or Metal Detector・EMF Reader have ads?

Neither Atlas 3D nor Metal Detector・EMF Reader shows ads.

### Which is updated more often, Atlas 3D or Metal Detector・EMF Reader?

Atlas 3D ships an update fortnightly, and Metal Detector・EMF Reader weekly. Most recently, Atlas 3D was updated on October 1, 2026 and Metal Detector・EMF Reader on October 18, 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.*