# EMF Detector vs netWatch2 sub

The clearest difference is ads: netWatch2 sub at none against EMF Detector's shown. netWatch2 sub also leads on update cadence (daily vs every 86 months) and iOS requirement (11.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EMF Detector ships an update every 86 months, netWatch2 sub daily. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | EMF Detector | netWatch2 sub |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 86 months | **Daily** |
| Monetization | Free | — |
| Size | 14 MB | 9 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Aqib](https://appshunter.io/developer/1273916792) | [PBN Innovation (Beijing) Co., Ltd.](https://appshunter.io/developer/1239297539) |

## What reviewers say

### EMF Detector

[App page](https://appshunter.io/ios/app/emf-detector-radiation-meter/id1435484022)

This tool uses your iPhone's magnetometer to measure electromagnetic field (EMF) activity in real time. Visualize EMF levels with clear indicators and receive haptic alerts when levels rise. Explore your surroundings with confidence by understanding magnetic field strength.

**Highlights:** EMF Meter for microtesla readings, Real-time radiation meter, Activity level indicators (safe, caution, alert), Haptic alerts for high EMF, Simple, instant measurement interface

**In-app purchases:** none


### netWatch2 sub

[App page](https://appshunter.io/ios/app/netwatch2-sub/id6608967722)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EMF Detector free?

EMF Detector is free to download, with no in-app purchases.

### Is netWatch2 sub free?

netWatch2 sub is free to download, with no in-app purchases.

### Do EMF Detector or netWatch2 sub have ads?

EMF Detector shows ads; netWatch2 sub does not.

### Which is updated more often, EMF Detector or netWatch2 sub?

EMF Detector ships an update every 86 months, and netWatch2 sub daily. Most recently, EMF Detector was updated on November 2, 2026 and netWatch2 sub on November 4, 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.*