# Functional Groups vs Organic Reactions Tutor

The clearest difference is update cadence: Organic Reactions Tutor at fortnightly against Functional Groups's every 4 months. Functional Groups's advantage is ratings volume (23 vs 2) and iOS requirement (15.0 vs 17.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Functional Groups sells 1 one-off in-app purchase and Organic Reactions Tutor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Functional Groups against 5.0 for Organic Reactions Tutor. That said, the two scores are not equally well evidenced: Functional Groups has 23 ratings behind it against 2, so its average is the more settled of the two.

Functional Groups ships an update every 4 months, Organic Reactions Tutor fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Functional Groups | Organic Reactions Tutor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (23 ratings)](https://appshunter.io/ios/app/functional-groups/id1670252638/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/organic-reactions-tutor/id6739188422/reviews)** |
| Number of ratings | **23** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 37 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Clarity Applications](https://appshunter.io/developer/1646120472) | [David Soulsby](https://appshunter.io/developer/1776367161) |

## What reviewers say

### Functional Groups

[App page](https://appshunter.io/ios/app/functional-groups/id1670252638)

Master organic chemistry functional groups through an engaging and interactive learning experience. Ideal for students in introductory or advanced courses, MCAT prep, and A-Level chemistry, this app covers dozens of essential groups with practice modes and progress tracking.

**Highlights:** 25+ basic and advanced functional groups, 300+ organic compounds, Multiple practice modes, Customizable study groups, Personalized review, Reference table and definitions, Progress tracking with achievements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $9.99 | one-time |


### Organic Reactions Tutor

[App page](https://appshunter.io/ios/app/organic-reactions-tutor/id6739188422)

Master organic chemistry reactions with a comprehensive library of over 1,300 step-by-step mechanisms and concise notes. Study using flashcards or multiple-choice quizzes, create custom study packs, and track your progress with trophies. Learn offline in over 17 languages.

**Highlights:** 1,300+ curated reactions, Step-by-step mechanisms, Flashcards and multiple-choice quizzes, Custom reaction creation, Study packs and progress tracking, Offline access, Multilingual support (17+ languages)

**Features:** Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is Functional Groups free?

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

### Is Organic Reactions Tutor free?

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

### Which has better reviews, Functional Groups or Organic Reactions Tutor?

Organic Reactions Tutor is rated higher. Functional Groups averages 4.9 out of 5 from 23 ratings, while Organic Reactions Tutor averages 5.0 from 2 ratings.

### Do Functional Groups or Organic Reactions Tutor have ads?

Neither Functional Groups nor Organic Reactions Tutor shows ads.

### Which is updated more often, Functional Groups or Organic Reactions Tutor?

Functional Groups ships an update every 4 months, and Organic Reactions Tutor fortnightly. Most recently, Functional Groups was updated on November 3, 2026 and Organic Reactions Tutor on October 30, 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.*