# ReactionFlash vs MolSketchGo

The clearest difference is in-app purchases: ReactionFlash at none against MolSketchGo's 2. ReactionFlash also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. MolSketchGo sells 2 in-app purchases, starting at $1.99 per month. ReactionFlash asks for nothing beyond the download.

ReactionFlash ships an update every 4 months, MolSketchGo every 2 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | ReactionFlash | MolSketchGo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (42 ratings)](https://appshunter.io/ios/app/reactionflash/id432080813/reviews)** | — |
| Number of ratings | **42** | — |
| Positive reviews | 80.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 37 MB | 39 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Elsevier Limited](https://appshunter.io/developer/1437273934) | [Japality Limited](https://appshunter.io/developer/1574046707) |

## 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


### MolSketchGo

[App page](https://appshunter.io/ios/app/molsketchgo/id6756492472)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MolSketchGo Pro Monthly | $1.99 | per month |
| MolSketchGo Pro Annual | $11.99 | per year |


## Frequently asked questions

### Is ReactionFlash free?

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

### Is MolSketchGo free?

MolSketchGo is free to download, with in-app purchases available.

### Do ReactionFlash or MolSketchGo have ads?

MolSketchGo shows ads; ReactionFlash does not.

### Which is updated more often, ReactionFlash or MolSketchGo?

ReactionFlash ships an update every 4 months, and MolSketchGo every 2 months. Most recently, ReactionFlash was updated on October 23, 2026 and MolSketchGo on October 20, 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.*