# EMD PTE vs BookWidgets

The clearest difference is review sentiment: EMD PTE at 90% against BookWidgets's 21%. EMD PTE also leads on rating (4.7 vs 1.7) and ratings volume (121 vs 30). BookWidgets's advantage is update cadence (monthly vs every 8 months) and iOS requirement (8.0 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

EMD PTE holds the better App Store score, 4.7 against 1.7. Both are backed by a comparable volume of ratings — 121 and 30 respectively. Written reviews point the same way: 90% of EMD PTE's written reviews are positive against 21% of BookWidgets's.

EMD PTE ships an update every 8 months, BookWidgets monthly. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | EMD PTE | BookWidgets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (121 ratings)](https://appshunter.io/ios/app/emd-pte/id377393859/reviews)** | [1.7 (30 ratings)](https://appshunter.io/ios/app/bookwidgets/id849068625/reviews) |
| Number of ratings | **121** | 30 |
| Positive reviews | **90.5% of reviews** | 21.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Free | Free |
| Size | 18 MB | 41 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Merck KGaA (Darmstadt, Germany)](https://appshunter.io/developer/370548001) | [Kidimedia](https://appshunter.io/developer/410393901) |

## 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


### BookWidgets

[App page](https://appshunter.io/ios/app/bookwidgets/id849068625)

Easily create interactive lessons, quizzes, and games for students on iPads and iPhones. Share engaging activities privately or embed them in learning platforms. Track student progress with built-in analytics.

**Highlights:** Create worksheets, quizzes, games, maps, and timelines, Add custom text, images, and questions, Share activities via private links or LMS embedding, Works on any device, Track learner activity and grade student work, Integrates with other educational apps

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EMD PTE free?

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

### Is BookWidgets free?

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

### Which has better reviews, EMD PTE or BookWidgets?

EMD PTE is rated higher. EMD PTE averages 4.7 out of 5 from 121 ratings, while BookWidgets averages 1.7 from 30 ratings.

### Do EMD PTE or BookWidgets have ads?

Neither EMD PTE nor BookWidgets shows ads.

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

EMD PTE ships an update every 8 months, and BookWidgets monthly. Most recently, EMD PTE was updated on October 5, 2026 and BookWidgets on October 14, 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.*