# R2R vs BioPath

R2R and BioPath both sit at 4.7 stars, but that hides the real split: 75% of R2R's written reviews are positive against 0% of BioPath's. R2R also leads on in-app purchases (none vs 7) and ads (none vs shown). BioPath's advantage is update cadence (weekly vs every 5 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. BioPath sells 7 in-app purchases, starting at $6.99 per month. R2R asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for R2R against 4.8 for BioPath. Both are backed by a comparable volume of ratings — 129 and 72 respectively. Written reviews are what separate them: 75% of R2R's written reviews are positive against 0% of BioPath's.

R2R ships an update every 5 months, BioPath weekly. The most recent releases landed on October 22, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | R2R | BioPath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (129 ratings)](https://appshunter.io/ios/app/r2r-functional-groups/id1225511399/reviews) | **[4.8 (72 ratings)](https://appshunter.io/ios/app/biopath-explore-biology/id6746768299/reviews)** |
| Number of ratings | **129** | 72 |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 57 MB | 128 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [James Styles](https://appshunter.io/developer/1537953716) | [Lojas Software Corp](https://appshunter.io/developer/1799458054) |

## What reviewers say

### R2R

[App page](https://appshunter.io/ios/app/r2r-functional-groups/id1225511399)

Learn and practice organic chemistry functional groups with interactive lessons and timed challenges. This app is designed for A-Level Chemistry students to prepare for exams and competitions.

**Highlights:** Learn functional groups, Practice with R-Groups, Timed challenges, Review different groups, Prepare for exams

**In-app purchases:** none


### BioPath

[App page](https://appshunter.io/ios/app/biopath-explore-biology/id6746768299)

This app is a comprehensive biology study companion offering interactive learning and quizzes. It features an AI tutor for step-by-step guidance, detailed explanations, and progress tracking to help students master biological concepts.

**Highlights:** AI Tutor for step-by-step guidance, Extensive topic coverage, Engaging quiz formats, Smart hints system, Detailed explanations and feedback, Progress tracking

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BioPath Pro monthly | $6.99 | per month |
| BioPath Pro Yearly | $49.99 | per year |
| Molecule Pack | $0.99 | one-time |
| Quick Skip Pack | $0.99 | one-time |
| Cellular Bundle | $1.99 | one-time |
| Enzyme Catalyst Bundle | $1.99 | one-time |
| Biosphere Box | $3.99 | one-time |


## Frequently asked questions

### Is R2R free?

R2R is free to download, with no in-app purchases.

### Is BioPath free?

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

### Which has better reviews, R2R or BioPath?

BioPath is rated higher. R2R averages 4.7 out of 5 from 129 ratings, while BioPath averages 4.8 from 72 ratings.

### Do R2R or BioPath have ads?

BioPath shows ads; R2R does not.

### Which is updated more often, R2R or BioPath?

R2R ships an update every 5 months, and BioPath weekly. Most recently, R2R was updated on October 22, 2026 and BioPath on October 9, 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.*