# UWorld MCAT Prep vs Functional Groups

The clearest difference is review sentiment: Functional Groups at 100% against UWorld MCAT Prep's 35%. Functional Groups also leads on rating (4.9 vs 4.5). UWorld MCAT Prep's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 4 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Functional Groups sells 1 one-off in-app purchase. UWorld MCAT Prep asks for nothing beyond the download.

Functional Groups holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: UWorld MCAT Prep has 157 ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 35% of UWorld MCAT Prep's written reviews are positive against 100% of Functional Groups's.

UWorld MCAT Prep ships an update monthly, Functional Groups every 4 months. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | UWorld MCAT Prep | Functional Groups |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (157 ratings)](https://appshunter.io/ios/app/uworld-mcat-prep-score-higher/id1248501386/reviews) | **[4.9 (21 ratings)](https://appshunter.io/ios/app/functional-groups/id1670252638/reviews)** |
| Number of ratings | **157** | 21 |
| Positive reviews | 35.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 215 MB | 17 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [UWorld LLC](https://appshunter.io/developer/340946910) | [Clarity Applications](https://appshunter.io/developer/1646120472) |

## What reviewers say

### UWorld MCAT Prep

[App page](https://appshunter.io/ios/app/uworld-mcat-prep-score-higher/id1248501386)

Prepare for the MCAT with a comprehensive suite of study tools. Access interactive ebooks, video lessons, flashcards, and a question bank with detailed explanations. Track your progress with practice exams and performance analytics to achieve your best score.

**Highlights:** 3,000+ MCAT-style practice questions, Detailed step-by-step explanations, Interactive UBooks with concept check questions, Hundreds of short video lessons, Spaced repetition flashcards, 4 AAMC practice exams, Performance tracking and analytics

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is UWorld MCAT Prep free?

UWorld MCAT Prep is free to download, with no in-app purchases.

### Is Functional Groups free?

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

### Which has better reviews, UWorld MCAT Prep or Functional Groups?

Functional Groups is rated higher. UWorld MCAT Prep averages 4.5 out of 5 from 157 ratings, while Functional Groups averages 4.9 from 21 ratings.

### Do UWorld MCAT Prep or Functional Groups have ads?

Neither UWorld MCAT Prep nor Functional Groups shows ads.

### Which is updated more often, UWorld MCAT Prep or Functional Groups?

UWorld MCAT Prep ships an update monthly, and Functional Groups every 4 months. Most recently, UWorld MCAT Prep was updated on October 23, 2026 and Functional Groups on October 11, 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.*