# Magnetic Field Scanner vs Tris Smart

The clearest difference is in-app purchases: Tris Smart at none against Magnetic Field Scanner's 3. Tris Smart also leads on iOS requirement (12 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Magnetic Field Scanner sells 3 in-app purchases, starting at $5.99 per month. Tris Smart asks for nothing beyond the download.

## The numbers

| Metric | Magnetic Field Scanner | Tris Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (12 ratings)](https://appshunter.io/ios/app/magnetic-field-scanner/id6747452469/reviews)** | — |
| Number of ratings | **12** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 179 MB |
| Requires iOS | 17.6 | **12** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hoang Le](https://appshunter.io/developer/1763197902) | [燕 张](https://appshunter.io/developer/1586296464) |

## What reviewers say

### Magnetic Field Scanner

[App page](https://appshunter.io/ios/app/magnetic-field-scanner/id6747452469)

This utility app uses your phone's magnetometer to detect unusual magnetic field spikes, which may indicate the presence of hidden electronic devices. It provides real-time alerts, visual graphs, and customizable sensitivity to help you scan your surroundings for potential privacy threats.

**Highlights:** Real-time magnetic field scanning, Hidden device alerts with adjustable sensitivity, Live visual graph of magnetic signals, 3-axis sensor readouts, Data history for pattern spotting, Offline and private operation

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MagnetoScanner Month Pass | $5.99 | per month |
| MagnetoScanner Year PAss | $29.99 | per year |
| MagnetoScanner Lifetime Access | $39.99 | one-time |


### Tris Smart

[App page](https://appshunter.io/ios/app/tris-smart/id6783646091)

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

**In-app purchases:** none


## Frequently asked questions

### Is Magnetic Field Scanner free?

Magnetic Field Scanner is free to download, with in-app purchases available.

### Is Tris Smart free?

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

### Do Magnetic Field Scanner or Tris Smart have ads?

Neither Magnetic Field Scanner nor Tris Smart shows ads.

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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.*