# Teslameter. vs Magnetometer ∞

The clearest difference is rating: Magnetometer ∞ at 4.4 against Teslameter.'s 2.0. Magnetometer ∞ also leads on update cadence (every 2 weeks vs every 12 months) and ratings volume (58 vs 3). Teslameter.'s advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Teslameter. sells 1 one-off in-app purchase and Magnetometer ∞ sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Magnetometer ∞ holds the better App Store score, 4.4 against 2.0. That said, the two scores are not equally well evidenced: Magnetometer ∞ has 58 ratings behind it against 3, so its average is the more settled of the two.

Teslameter. ships an update every 12 months, Magnetometer ∞ every 2 weeks. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Teslameter. | Magnetometer ∞ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/teslameter/id976926346/reviews) | **[4.4 (58 ratings)](https://appshunter.io/ios/app/magnetometer/id6753061844/reviews)** |
| Number of ratings | 3 | **58** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 16 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [margaret kovatch](https://appshunter.io/developer/1039651981) | [Chen-Yu Wei](https://appshunter.io/developer/432767536) |

## What reviewers say

### Teslameter.

[App page](https://appshunter.io/ios/app/teslameter/id976926346)

This utility app measures electromagnetic fields around you using your device's compass. It displays readings on X, Y, and Z axes in micro-teslas, along with a magnitude reading. Primarily for entertainment, it detects interference from magnetic objects or potential paranormal activity.

**Highlights:** Measures electromagnetic fields, Displays X, Y, Z axis readings, Calculates magnitude reading, Detects magnetic object interference, For entertainment purposes

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Magnetometer ∞

[App page](https://appshunter.io/ios/app/magnetometer/id6753061844)

Visualize magnetic fields in real-time with precision charts and monitor X, Y, Z axis readings. Ideal for scientific research, education, and field work, this app offers professional-grade accuracy and an intuitive interface for easy data interpretation.

**Highlights:** Real-time magnetic field visualization, X, Y, Z axis readings in microteslas, Scientific research tool, Educational aid, Field work companion, Intuitive interface

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Teslameter. free?

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

### Is Magnetometer ∞ free?

Magnetometer ∞ is free to download, with in-app purchases available.

### Which has better reviews, Teslameter. or Magnetometer ∞?

Magnetometer ∞ is rated higher. Teslameter. averages 2.0 out of 5 from 3 ratings, while Magnetometer ∞ averages 4.4 from 58 ratings.

### Do Teslameter. or Magnetometer ∞ have ads?

Both Teslameter. and Magnetometer ∞ show ads.

### Which is updated more often, Teslameter. or Magnetometer ∞?

Teslameter. ships an update every 12 months, and Magnetometer ∞ every 2 weeks. Most recently, Teslameter. was updated on October 6, 2026 and Magnetometer ∞ on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*