# EMD PTE vs Electrochemistry

The clearest difference is price: EMD PTE at Free against Electrochemistry's $3.99. EMD PTE also leads on iOS requirement (12.0 vs 17.0). Electrochemistry's advantage is update cadence (every 3 months vs every 8 months). On ads, in-app purchases and device support there is nothing between them.

EMD PTE is free to download; Electrochemistry costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EMD PTE ships an update every 8 months, Electrochemistry every 3 months. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | EMD PTE | Electrochemistry |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.7 (121 ratings)](https://appshunter.io/ios/app/emd-pte/id377393859/reviews)** | — |
| Number of ratings | **121** | — |
| Positive reviews | 90.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 18 MB | 1 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Merck KGaA (Darmstadt, Germany)](https://appshunter.io/developer/370548001) | [Roman Volinsky](https://appshunter.io/developer/977951850) |

## What reviewers say

### EMD PTE

[App page](https://appshunter.io/ios/app/emd-pte/id377393859)

This comprehensive mobile reference work provides detailed information on all chemical elements. It features a molar mass calculator, interactive visualizations, and offline access, making it an indispensable tool for students, educators, and chemistry enthusiasts.

**Highlights:** Detailed element information, Visualized element properties, Molar mass calculator, Offline access, Multi-language support, Element comparison function

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent user interface
- 🚀 Intuitive and easy to use
- 💡 Comprehensive information on elements
- 🔍 Detailed element properties and data
- 🎨 Visually appealing design

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 🔍 Missing some advanced features
- 🔧 Needs optimization for newer devices
- 🔢 Inconsistent unit display (Fahrenheit vs Celsius)

**Reported bugs**

- Incorrect atomic radius data for some elements
- Glitches when switching between screens

**Requested features**

- Add search functionality
- Provide more customization options
- Include isotope and mass data
- Improve navigation between elements


### Electrochemistry

[App page](https://appshunter.io/ios/app/electrochemistry/id1014920086)

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

**In-app purchases:** none


## Frequently asked questions

### Is EMD PTE free?

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

### Is Electrochemistry free?

Electrochemistry costs $3.99, with no in-app purchases.

### Do EMD PTE or Electrochemistry have ads?

Neither EMD PTE nor Electrochemistry shows ads.

### Which is updated more often, EMD PTE or Electrochemistry?

EMD PTE ships an update every 8 months, and Electrochemistry every 3 months. Most recently, EMD PTE was updated on October 17, 2026 and Electrochemistry on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*