# Organic Syntheses vs Introductory Statistics Tutor

The clearest difference is in-app purchases: Organic Syntheses at none against Introductory Statistics Tutor's 1. Organic Syntheses also leads on iOS requirement (15.6 vs 17.0). Introductory Statistics Tutor's advantage is update cadence (every 3 weeks vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Introductory Statistics Tutor sells 1 one-off in-app purchase. Organic Syntheses asks for nothing beyond the download.

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

## The numbers

| Metric | Organic Syntheses | Introductory Statistics Tutor |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 22 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VPInformatics, Inc](https://appshunter.io/developer/533312332) | [David Soulsby](https://appshunter.io/developer/1776367161) |

## 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


### Introductory Statistics Tutor

[App page](https://appshunter.io/ios/app/introductory-statistics-tutor/id6815790980)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Topics | $4.99 | one-time |


## Frequently asked questions

### Is Organic Syntheses free?

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

### Is Introductory Statistics Tutor free?

Introductory Statistics Tutor is free to download, with in-app purchases available.

### Do Organic Syntheses or Introductory Statistics Tutor have ads?

Neither Organic Syntheses nor Introductory Statistics Tutor shows ads.

### Which is updated more often, Organic Syntheses or Introductory Statistics Tutor?

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