# Magnetometer vs Atomic Sync

The clearest difference is price: Atomic Sync at Free against Magnetometer's $0.99. Atomic Sync also leads on update cadence (fortnightly vs every 34 months) and device support (3 vs 1). Magnetometer's advantage is ads (none vs shown). On in-app purchases and iOS requirement there is nothing between them.

Atomic Sync is free to download; Magnetometer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Magnetometer ships an update every 34 months, Atomic Sync fortnightly. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Magnetometer | Atomic Sync |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.4 (13 ratings)](https://appshunter.io/ios/app/magnetometer/id1662997574/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 34 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 2 MB | 27 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bogdan Gavriluta](https://appshunter.io/developer/1584690995) | [Serhii Sereda](https://appshunter.io/developer/1887133214) |

## What reviewers say

### Magnetometer

[App page](https://appshunter.io/ios/app/magnetometer/id1662997574)

This application uses your iPhone's compass to detect electromagnetic interference, helping you find metal objects or magnets. It's designed for fun and experimental purposes, not as a professional tool. Discover hidden metal items or simply explore the magnetic fields around you.

**Highlights:** Detects metal and magnets, Uses iPhone's compass, Measures EMF interference, Fun and experimental use, Simple user interface

**In-app purchases:** none


### Atomic Sync

[App page](https://appshunter.io/ios/app/atomic-sync-radio-watch-time/id6761634713)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Magnetometer free?

Magnetometer costs $0.99, with no in-app purchases.

### Is Atomic Sync free?

Atomic Sync is free to download, with no in-app purchases.

### Do Magnetometer or Atomic Sync have ads?

Atomic Sync shows ads; Magnetometer does not.

### Which is updated more often, Magnetometer or Atomic Sync?

Magnetometer ships an update every 34 months, and Atomic Sync fortnightly. Most recently, Magnetometer was updated on September 22, 2026 and Atomic Sync on September 19, 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.*