# Functional Groups vs Boost CAA

The clearest difference is update cadence: Boost CAA at every 3 weeks against Functional Groups's every 4 months. Functional Groups's advantage is ratings volume (21 vs 1). 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 Boost CAA sells 2 in-app purchases, starting at $19.00 per month. 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 Boost CAA. That said, the two scores are not equally well evidenced: Functional Groups has 21 ratings behind it against 1, so its average is the more settled of the two.

Functional Groups ships an update every 4 months, Boost CAA every 3 weeks. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Functional Groups | Boost CAA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (21 ratings)](https://appshunter.io/ios/app/functional-groups/id1670252638/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/boost-caa-caa-school-prep/id6800538208/reviews)** |
| Number of ratings | **21** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 17 MB | 37 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Clarity Applications](https://appshunter.io/developer/1646120472) | [Boost Ventures, LLC](https://appshunter.io/developer/6800537573) |

## 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 |


### Boost CAA

[App page](https://appshunter.io/ios/app/boost-caa-caa-school-prep/id6800538208)

This app helps aspiring anesthesiologist assistants prepare for school. It offers candidacy scoring, a program directory with deadline tracking, and interview practice with an AI coach. Gain honest insights into your application strength and navigate the admissions process with confidence.

**Highlights:** Candidacy scoring based on real numbers, CAA program directory with deadlines, AI-powered interview practice, Personal statement review, Application and deadline tracking, Anonymized applicant benchmarks

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $19.00 | per month |
| Pro (Annual) | $149.00 | per year |


## Frequently asked questions

### Is Functional Groups free?

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

### Is Boost CAA free?

Boost CAA is free to download, with in-app purchases available.

### Which has better reviews, Functional Groups or Boost CAA?

Boost CAA is rated higher. Functional Groups averages 4.9 out of 5 from 21 ratings, while Boost CAA averages 5.0 from 1 ratings.

### Do Functional Groups or Boost CAA have ads?

Neither Functional Groups nor Boost CAA shows ads.

### Which is updated more often, Functional Groups or Boost CAA?

Functional Groups ships an update every 4 months, and Boost CAA every 3 weeks. Most recently, Functional Groups was updated on October 11, 2026 and Boost CAA on October 1, 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.*