# Magnetometer ∞ vs OPEN IQ

The clearest difference is in-app purchases: OPEN IQ at none against Magnetometer ∞'s 2. OPEN IQ also leads on ads (none vs shown). Magnetometer ∞'s advantage is update cadence (every 2 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Magnetometer ∞ sells 2 in-app purchases, starting at $1.99 per 7 days. OPEN IQ asks for nothing beyond the download.

Magnetometer ∞ ships an update every 2 weeks, OPEN IQ every 2 months. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Magnetometer ∞ | OPEN IQ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (58 ratings)](https://appshunter.io/ios/app/magnetometer/id6753061844/reviews)** | — |
| Number of ratings | **58** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 139 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Fawkes Wei](https://appshunter.io/developer/432767536) | [Lincolnville Communications, Inc.](https://appshunter.io/developer/6786667216) |

## What reviewers say

### 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 |


### OPEN IQ

[App page](https://appshunter.io/ios/app/open-iq/id6786667214)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Magnetometer ∞ free?

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

### Is OPEN IQ free?

OPEN IQ is free to download, with no in-app purchases.

### Do Magnetometer ∞ or OPEN IQ have ads?

Magnetometer ∞ shows ads; OPEN IQ does not.

### Which is updated more often, Magnetometer ∞ or OPEN IQ?

Magnetometer ∞ ships an update every 2 weeks, and OPEN IQ every 2 months. Most recently, Magnetometer ∞ was updated on October 11, 2026 and OPEN IQ on October 7, 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.*