# ReactionFlash vs Drug Hunter

The clearest difference is ratings volume: ReactionFlash at 42 against Drug Hunter's 1. Drug Hunter's advantage is update cadence (every 5 weeks vs every 4 months) and rating (5.0 vs 4.8). 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.

Drug Hunter holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ReactionFlash has 42 ratings behind it against 1, so its average is the more settled of the two.

ReactionFlash ships an update every 4 months, Drug Hunter every 5 weeks. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ReactionFlash | Drug Hunter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (42 ratings)](https://appshunter.io/ios/app/reactionflash/id432080813/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/drug-hunter/id6748365355/reviews)** |
| Number of ratings | **42** | 1 |
| Positive reviews | 80.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 37 MB | 36 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Elsevier Limited](https://appshunter.io/developer/1437273934) | [Drug Hunter Inc.](https://appshunter.io/developer/1825465050) |

## 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


### Drug Hunter

[App page](https://appshunter.io/ios/app/drug-hunter/id6748365355)

This app provides curated scientific insights, molecule analyses, and case studies for professionals in drug discovery. It organizes and makes searchable key discoveries in medicinal chemistry, biology, and pharmaceutical R&D, saving users time spent on traditional research methods.

**Highlights:** Curated scientific insights, Molecule analyses, Case studies, Organized and searchable discoveries, Structure-based search tools, Industry scientist distilled content

**In-app purchases:** none


## Frequently asked questions

### Is ReactionFlash free?

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

### Is Drug Hunter free?

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

### Which has better reviews, ReactionFlash or Drug Hunter?

Drug Hunter is rated higher. ReactionFlash averages 4.8 out of 5 from 42 ratings, while Drug Hunter averages 5.0 from 1 ratings.

### Do ReactionFlash or Drug Hunter have ads?

Neither ReactionFlash nor Drug Hunter shows ads.

### Which is updated more often, ReactionFlash or Drug Hunter?

ReactionFlash ships an update every 4 months, and Drug Hunter every 5 weeks. Most recently, ReactionFlash was updated on October 23, 2026 and Drug Hunter on October 11, 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.*