# ReactionFlash vs BEAKER by THIX

The clearest difference is price: ReactionFlash at Free against BEAKER by THIX's $0.99. ReactionFlash also leads on rating (4.8 vs 3.9) and in-app purchases (none vs 1). BEAKER by THIX's advantage is ratings volume (283 vs 41) and iOS requirement (9.0 vs 14.0). On update cadence, ads and device support there is nothing between them.

ReactionFlash is free to download; BEAKER by THIX costs $0.99 up front. BEAKER by THIX sells 1 one-off in-app purchase. ReactionFlash asks for nothing beyond the download.

ReactionFlash holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: BEAKER by THIX has 283 ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 81% of ReactionFlash's written reviews are positive against 51% of BEAKER by THIX's.

ReactionFlash ships an update every 4 months, BEAKER by THIX every 2 months. The most recent releases landed on September 21, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ReactionFlash | BEAKER by THIX |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (41 ratings)](https://appshunter.io/ios/app/reactionflash/id432080813/reviews)** | [3.9 (283 ratings)](https://appshunter.io/ios/app/beaker-by-thix/id961227503/reviews) |
| Number of ratings | 41 | **283** |
| Positive reviews | **80.6% of reviews** | 50.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 56 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) | [THIX LLC](https://appshunter.io/developer/433373206) |

## 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


### BEAKER by THIX

[App page](https://appshunter.io/ios/app/beaker-by-thix/id961227503)

Explore a virtual laboratory with 150 chemicals. Mix, heat, and shake substances to observe reactions. Collaborate with friends using AirMix™ for shared experiments. Additional tools enhance complex operations.

**Highlights:** Virtual lab with 150 chemicals, Interactive mixing, heating, and shaking, Real-time chemical reactions, Multiplayer via AirMix™, Additional experimental tools, Simulated ignition and boiling

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Tools | Free | one-time |

**What reviewers like**

- 🚀 Great for experimenting
- 👍 Realistic reactions
- 💡 Useful for learning chemistry

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔒 Paywall for basic features
- 🔋 Performance issues on some devices

**Reported bugs**

- Liquids and solids behaving unrealistically
- Crashes when mixing certain chemicals
- AirMix not working as advertised
- UI elements disappearing or malfunctioning

**Requested features**

- Add more elements and compounds
- Improve accuracy of chemical reactions
- Implement a periodic table view
- Add support for exothermic/endothermic reactions
- Improve AirMix functionality


## Frequently asked questions

### Is ReactionFlash free?

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

### Is BEAKER by THIX free?

BEAKER by THIX costs $0.99, and also offers in-app purchases.

### Which has better reviews, ReactionFlash or BEAKER by THIX?

ReactionFlash is rated higher. ReactionFlash averages 4.8 out of 5 from 41 ratings, while BEAKER by THIX averages 3.9 from 283 ratings.

### Do ReactionFlash or BEAKER by THIX have ads?

Neither ReactionFlash nor BEAKER by THIX shows ads.

### Which is updated more often, ReactionFlash or BEAKER by THIX?

ReactionFlash ships an update every 4 months, and BEAKER by THIX every 2 months. Most recently, ReactionFlash was updated on September 21, 2026 and BEAKER by THIX on September 29, 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.*