# Magnetometer X vs Aquaread BlueLink

The clearest difference is in-app purchases: Aquaread BlueLink at none against Magnetometer X's 1. Aquaread BlueLink also leads on iOS requirement (15.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Magnetometer X sells 1 one-off in-app purchase. Aquaread BlueLink asks for nothing beyond the download.

Magnetometer X ships an update every 3 weeks, Aquaread BlueLink fortnightly. Both last shipped on October 28, 2026.

## The numbers

| Metric | Magnetometer X | Aquaread BlueLink |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 7 MB | 25 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rok Dovecar](https://appshunter.io/developer/647213197) | [NKE INSTRUMENTATION](https://appshunter.io/developer/6780420026) |

## What reviewers say

### Magnetometer X

[App page](https://appshunter.io/ios/app/magnetometer-x/id6757970219)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Magnetometer X PRO | $4.99 | one-time |


### Aquaread BlueLink

[App page](https://appshunter.io/ios/app/aquaread-bluelink/id6780430183)

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

**In-app purchases:** none


## Frequently asked questions

### Is Magnetometer X free?

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

### Is Aquaread BlueLink free?

Aquaread BlueLink is free to download, with no in-app purchases.

### Do Magnetometer X or Aquaread BlueLink have ads?

Neither Magnetometer X nor Aquaread BlueLink shows ads.

### Which is updated more often, Magnetometer X or Aquaread BlueLink?

Magnetometer X ships an update every 3 weeks, and Aquaread BlueLink fortnightly. Most recently, Magnetometer X was updated on October 28, 2026 and Aquaread BlueLink on October 28, 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.*