# Organic Reactions vs SynStrategy

The clearest difference is in-app purchases: SynStrategy at none against Organic Reactions's 2. SynStrategy also leads on review sentiment (100% vs 68%) and rating (5.0 vs 4.7). Organic Reactions's advantage is ratings volume (170 vs 10). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Organic Reactions sells 2 one-off in-app purchases. SynStrategy asks for nothing beyond the download.

SynStrategy holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Organic Reactions has 170 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 68% of Organic Reactions's written reviews are positive against 100% of SynStrategy's.

Organic Reactions ships an update every 10 months, SynStrategy every 3 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Organic Reactions | SynStrategy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (170 ratings)](https://appshunter.io/ios/app/organic-reactions/id1184085187/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/synstrategy/id6755611244/reviews)** |
| Number of ratings | **170** | 10 |
| Positive reviews | 68.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 36 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Florent Breton](https://appshunter.io/developer/1184085186) | [Willi M. Amberg](https://appshunter.io/developer/1854863487) |

## What reviewers say

### Organic Reactions

[App page](https://appshunter.io/ios/app/organic-reactions/id1184085187)

Access key functional group reactions and their mechanisms in organic chemistry. Quickly find links between reactants and products, including synthesis and protection reactions. Some advanced features and reaction lists require an additional purchase.

**Highlights:** Functional group reactions, Reaction mechanisms, Reactant-product links, Synthesis reactions, Protection reactions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One month subscription | $0.99 | one-time |
| Full App | $4.99 | one-time |


### SynStrategy

[App page](https://appshunter.io/ios/app/synstrategy/id6755611244)

This app categorizes organic reactions by the functional groups they form, aiding chemists in synthetic analysis. It offers over 500 transformations and 400 synthesis examples, with detailed subdivisions for clarity.

**Highlights:** Reactions categorized by functional group, 27 main functional group categories, Over 500 transformations, Over 400 total synthesis examples, Subdivided functional group categories, Highlights synthetic use cases

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Organic Reactions free?

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

### Is SynStrategy free?

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

### Which has better reviews, Organic Reactions or SynStrategy?

SynStrategy is rated higher. Organic Reactions averages 4.7 out of 5 from 170 ratings, while SynStrategy averages 5.0 from 10 ratings.

### Do Organic Reactions or SynStrategy have ads?

Neither Organic Reactions nor SynStrategy shows ads.

### Which is updated more often, Organic Reactions or SynStrategy?

Organic Reactions ships an update every 10 months, and SynStrategy every 3 months. Most recently, Organic Reactions was updated on November 2, 2026 and SynStrategy on November 5, 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.*