# Magnetometer vs Diamond Grader

The clearest difference is price: Diamond Grader at Free against Magnetometer's $1.99. Magnetometer's advantage is in-app purchases (none vs 3) and iOS requirement (13.0 vs 18.0). On ads and device support there is nothing between them.

Diamond Grader is free to download; Magnetometer costs $1.99 up front. Diamond Grader sells 3 in-app purchases, starting at $6.99 per 7 days. Magnetometer asks for nothing beyond the download.

## The numbers

| Metric | Magnetometer | Diamond Grader |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/magnetometer-emf-detector/id6752918170/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Paid | — |
| Size | 23 MB | 7 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SootheTrail Solutions LLC](https://appshunter.io/developer/1815309839) | [Angel App Publishing Ltd.](https://appshunter.io/developer/412814814) |

## What reviewers say

### Magnetometer

[App page](https://appshunter.io/ios/app/magnetometer-emf-detector/id6752918170)

Transform your device into a precise electromagnetic field detector. Ideal for electrical safety checks, scientific exploration, and environmental monitoring with real-time readings and historical data.

**Highlights:** Real-time EMF detection, Historical trend charts, Customizable alerts, Data export, Multiple units support, Adjustable sampling rates

**In-app purchases:** none


### Diamond Grader

[App page](https://appshunter.io/ios/app/diamond-grader/id6803156673)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $6.99 | per 7 days |
| Monthly Subscription | $12.99 | per month |
| Annual Subscription | $59.99 | per year |


## Frequently asked questions

### Is Magnetometer free?

Magnetometer costs $1.99, with no in-app purchases.

### Is Diamond Grader free?

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

### Do Magnetometer or Diamond Grader have ads?

Neither Magnetometer nor Diamond Grader 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.*