# µMagnetometer vs 7gnuPrimeL∞R

The clearest difference is update cadence: 7gnuPrimeL∞R at weekly against µMagnetometer's every 4 months. 7gnuPrimeL∞R also leads on price ($0.99 vs $1.99). µMagnetometer's advantage is iOS requirement (11.0 vs 14.2). On ads, in-app purchases and device support there is nothing between them.

µMagnetometer costs $1.99 and 7gnuPrimeL∞R $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

µMagnetometer ships an update every 4 months, 7gnuPrimeL∞R weekly. The most recent releases landed on October 24, 2026 and December 7, 2025 respectively.

## The numbers

| Metric | µMagnetometer | 7gnuPrimeL∞R |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.4 (67 ratings)](https://appshunter.io/ios/app/magnetometer/id1482576105/reviews)** | — |
| Number of ratings | **67** | — |
| Positive reviews | 23.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Paid | — |
| Size | 15 MB | 3 MB |
| Requires iOS | **11.0** | 14.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmytro Hrebeniuk](https://appshunter.io/developer/1458758581) | [Masaru Sasaki](https://appshunter.io/developer/1542765863) |

## What reviewers say

### µMagnetometer

[App page](https://appshunter.io/ios/app/magnetometer/id1482576105)

Measures the strength of the magnetic field around you using your device's magnetometer. Requires Location Services to be enabled on iOS. Provides microtesla readings for nearby magnetic fields.

**Highlights:** Measures magnetic field strength, Displays readings in microteslas, Utilizes device magnetometer, Requires Location Services (iOS)

**Features:** Vision Pro support

**In-app purchases:** none


### 7gnuPrimeL∞R

[App page](https://appshunter.io/ios/app/7gnuprimelr/id1596916975)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is µMagnetometer free?

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

### Is 7gnuPrimeL∞R free?

7gnuPrimeL∞R costs $0.99, with no in-app purchases.

### Do µMagnetometer or 7gnuPrimeL∞R have ads?

Neither µMagnetometer nor 7gnuPrimeL∞R shows ads.

### Which is updated more often, µMagnetometer or 7gnuPrimeL∞R?

µMagnetometer ships an update every 4 months, and 7gnuPrimeL∞R weekly. Most recently, µMagnetometer was updated on October 24, 2026 and 7gnuPrimeL∞R on December 7, 2025.

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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.*