# Functional Groups vs Molecular Models

The clearest difference is update cadence: Molecular Models at every 9 days against Functional Groups's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Functional Groups ships an update every 4 months, Molecular Models every 9 days. The most recent releases landed on October 11, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Functional Groups | Molecular Models |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (21 ratings)](https://appshunter.io/ios/app/functional-groups/id1670252638/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 11 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Clarity Applications](https://appshunter.io/developer/1646120472) | [Krishna Raj Salim](https://appshunter.io/developer/1638689285) |

## 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 |


### Molecular Models

[App page](https://appshunter.io/ios/app/molecular-models-3d/id6753124450)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FullVersion | $1.99 | one-time |


## Frequently asked questions

### Is Functional Groups free?

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

### Is Molecular Models free?

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

### Do Functional Groups or Molecular Models have ads?

Neither Functional Groups nor Molecular Models shows ads.

### Which is updated more often, Functional Groups or Molecular Models?

Functional Groups ships an update every 4 months, and Molecular Models every 9 days. Most recently, Functional Groups was updated on October 11, 2026 and Molecular Models on September 21, 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.*