# Vapour Pressures vs EMF Tracker

The clearest difference is review sentiment: EMF Tracker at 100% against Vapour Pressures's 0%. EMF Tracker also leads on price (Free vs $3.99) and update cadence (every 5 days vs every 6 months). Vapour Pressures's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

EMF Tracker is free to download; Vapour Pressures costs $3.99 up front. EMF Tracker sells 2 in-app purchases, starting at $2.99 per year. Vapour Pressures asks for nothing beyond the download.

Vapour Pressures ships an update every 6 months, EMF Tracker every 5 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Vapour Pressures | EMF Tracker |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/vapour-pressures/id6738324417/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Monetization | Paid | **Freemium** |
| Size | 14 MB | 41 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Irving Josue Cortes Iturriaga](https://appshunter.io/developer/1750836580) | [PPLST Tech](https://appshunter.io/developer/1832748300) |

## What reviewers say

### Vapour Pressures

[App page](https://appshunter.io/ios/app/vapour-pressures/id6738324417)

Calculate vapor pressures and boiling points quickly and accurately with this tool. It features two extensive databases and supports various units, making it ideal for engineers, scientists, and students working with phase-change phenomena.

**Highlights:** Vapor pressure calculation, Boiling point calculation, Extensive substance databases, Support for multiple units, Multi-language support, No data collection

**Features:** macOS Compatibility, 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 Vapour Pressures free?

Vapour Pressures costs $3.99, with no in-app purchases.

### Is EMF Tracker free?

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

### Do Vapour Pressures or EMF Tracker have ads?

Neither Vapour Pressures nor EMF Tracker shows ads.

### Which is updated more often, Vapour Pressures or EMF Tracker?

Vapour Pressures ships an update every 6 months, and EMF Tracker every 5 days. Most recently, Vapour Pressures was updated on October 9, 2026 and EMF Tracker on October 7, 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.*