# Krypton vs EMF Tracker

The clearest difference is price: EMF Tracker at Free against Krypton's $2.99. EMF Tracker also leads on update cadence (every 5 days vs every 10 months). Krypton's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

EMF Tracker is free to download; Krypton costs $2.99 up front. EMF Tracker sells 2 in-app purchases, starting at $2.99 per year. Krypton asks for nothing beyond the download.

Krypton ships an update every 10 months, EMF Tracker every 5 days. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Krypton | EMF Tracker |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/krypton/id1529946598/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 days** |
| Monetization | Paid | **Freemium** |
| Size | 110 MB | 41 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Steve Lidie](https://appshunter.io/developer/1869780159) | [PPLST Tech](https://appshunter.io/developer/1832748300) |

## What reviewers say

### Krypton

[App page](https://appshunter.io/ios/app/krypton/id1529946598)

Securely encrypt and protect your personal documents and folders with strong encryption. This app acts like a digital vault, keeping your sensitive files safe from unauthorized access on your devices and cloud storage.

**Highlights:** Strong encryption for documents and folders, Acts as a secure digital vault, Supports various file types (pictures, movies, PDFs, etc.), Cloud synchronization with iCloud Drive and Dropbox, Available on iOS and macOS

**Features:** Vision Pro support

**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 Krypton free?

Krypton costs $2.99, with no in-app purchases.

### Is EMF Tracker free?

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

### Do Krypton or EMF Tracker have ads?

Neither Krypton nor EMF Tracker shows ads.

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

Krypton ships an update every 10 months, and EMF Tracker every 5 days. Most recently, Krypton was updated on September 22, 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.*