# ReactionFlash vs Chemistry  Dictionary Pro

The clearest difference is rating: ReactionFlash at 4.8 against Chemistry  Dictionary Pro's 3.0. ReactionFlash also leads on ratings volume (41 vs 1). Chemistry  Dictionary Pro's advantage is review sentiment (100% vs 81%) and iOS requirement (9.0 vs 14.0). 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.

ReactionFlash holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: ReactionFlash has 41 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 81% of ReactionFlash's written reviews are positive against 100% of Chemistry  Dictionary Pro's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | ReactionFlash | Chemistry  Dictionary Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (41 ratings)](https://appshunter.io/ios/app/reactionflash/id432080813/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/chemistry-dictionary-pro/id1494573984/reviews) |
| Number of ratings | **41** | 1 |
| Positive reviews | 80.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | Free |
| Size | 37 MB | 15 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Elsevier Limited](https://appshunter.io/developer/1437273934) | [Donik Ariyanto](https://appshunter.io/developer/1325008963) |

## What reviewers say

### ReactionFlash

[App page](https://appshunter.io/ios/app/reactionflash/id432080813)

This app serves as a comprehensive flashcard-style learning tool for named chemical reactions. It provides detailed information on reaction mechanisms and examples from scientific literature, with a quiz mode to test user knowledge.

**Highlights:** Learn named chemical reactions, Understand reaction mechanisms, View literature examples, Quiz mode for knowledge testing, Flashcard interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Chemistry  Dictionary Pro

[App page](https://appshunter.io/ios/app/chemistry-dictionary-pro/id1494573984)

Access a comprehensive offline dictionary of chemistry terms and definitions. Quickly find meanings, test your knowledge with quizzes, and bookmark your favorite vocabulary. Ideal for students and enthusiasts needing a reliable chemistry reference.

**Highlights:** Offline access to tens of thousands of terms, Search functionality for terms and words, Bookmark favorite terms, Daily word feature, Chemistry term quizzes, Clear explanations for definitions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ReactionFlash free?

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

### Is Chemistry  Dictionary Pro free?

Chemistry  Dictionary Pro is free to download, with no in-app purchases.

### Which has better reviews, ReactionFlash or Chemistry  Dictionary Pro?

ReactionFlash is rated higher. ReactionFlash averages 4.8 out of 5 from 41 ratings, while Chemistry  Dictionary Pro averages 3.0 from 1 ratings.

### Do ReactionFlash or Chemistry  Dictionary Pro have ads?

Neither ReactionFlash nor Chemistry  Dictionary Pro shows ads.

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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.*