# Organic Syntheses vs PlainRx

The clearest difference is update cadence: PlainRx at every 3 weeks against Organic Syntheses's every 6 months. Organic Syntheses's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Organic Syntheses ships an update every 6 months, PlainRx every 3 weeks. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Organic Syntheses | PlainRx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (6 ratings)](https://appshunter.io/ios/app/organic-syntheses/id1087152400/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 3 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [VPInformatics, Inc](https://appshunter.io/developer/533312332) | [JT Scientific Consulting LLC](https://appshunter.io/developer/1612699648) |

## What reviewers say

### Organic Syntheses

[App page](https://appshunter.io/ios/app/organic-syntheses/id1087152400)

Access a vast collection of detailed, reliable organic synthesis procedures. Search by volume, article, or full text, and save your findings for offline viewing. Share discoveries with colleagues and explore methods for preparing specific compounds or illustrating general synthetic techniques.

**Highlights:** Searchable procedure database, Full text search functionality, Save procedures for offline access, Share findings with colleagues, Detailed, checked synthesis methods, Access to historical procedures

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

**In-app purchases:** none


### PlainRx

[App page](https://appshunter.io/ios/app/plainrx/id6758585795)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Organic Syntheses free?

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

### Is PlainRx free?

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

### Do Organic Syntheses or PlainRx have ads?

Neither Organic Syntheses nor PlainRx shows ads.

### Which is updated more often, Organic Syntheses or PlainRx?

Organic Syntheses ships an update every 6 months, and PlainRx every 3 weeks. Most recently, Organic Syntheses was updated on October 13, 2026 and PlainRx on October 25, 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.*