# Nozzle vs EMF Tracker

The clearest difference is in-app purchases: Nozzle at none against EMF Tracker's 2. Nozzle also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. EMF Tracker sells 2 in-app purchases, starting at $2.99 per year. Nozzle asks for nothing beyond the download.

Nozzle ships an update weekly, EMF Tracker every 5 days. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Nozzle | EMF Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 30 MB | 41 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [KnowledgeLens](https://appshunter.io/developer/1335643339) | [PPLST Tech](https://appshunter.io/developer/1832748300) |

## What reviewers say

### Nozzle

[App page](https://appshunter.io/ios/app/nozzle-tracker/id1641917109)

**In-app purchases:** none


### EMF Tracker

[App page](https://appshunter.io/ios/app/emf-tracker/id6749901198)

This app measures electromagnetic field (EMF) levels using your phone's magnetometer. It provides real-time data, professional charts, and AI-powered insights to help you understand and manage your exposure. Track trends, identify patterns, and receive personalized advice to reduce potential risks.

**Highlights:** Real-time EMF detection, Professional charts and graphs, AI-powered insights and tips, Trend and pattern analysis, History and data export, 4-tier safety levels

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EMF Tracker - Wellness | $2.99 | per year |
| EMF Tracker - Pro | $4.99 | per year |


## Frequently asked questions

### Is Nozzle free?

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

### Is EMF Tracker free?

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

### Do Nozzle or EMF Tracker have ads?

Neither Nozzle nor EMF Tracker shows ads.

### Which is updated more often, Nozzle or EMF Tracker?

Nozzle ships an update weekly, and EMF Tracker every 5 days. Most recently, Nozzle was updated on September 23, 2026 and EMF Tracker on September 20, 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.*