# R2R vs Physics Master Homework Tutor

The clearest difference is rating: R2R at 5.0 against Physics Master Homework Tutor's 4.4. R2R also leads on review sentiment (100% vs 59%) and ads (none vs shown). Physics Master Homework Tutor's advantage is update cadence (every 4 weeks vs every 3 months) and ratings volume (136 vs 9). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. R2R sells 1 one-off in-app purchase and Physics Master Homework Tutor sells 10 in-app purchases, starting at $3.49 per month. Whichever you choose, the download price is not the number that matters.

R2R holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Physics Master Homework Tutor has 136 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 100% of R2R's written reviews are positive against 59% of Physics Master Homework Tutor's.

R2R ships an update every 3 months, Physics Master Homework Tutor every 4 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | R2R | Physics Master Homework Tutor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/r2r-advanced-chemistry/id1268437563/reviews)** | [4.4 (136 ratings)](https://appshunter.io/ios/app/physics-master-homework-tutor/id1453430489/reviews) |
| Number of ratings | 9 | **136** |
| Positive reviews | **100.0% of reviews** | 58.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 151 MB | 117 MB |
| Requires iOS | **10.3** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Styles](https://appshunter.io/developer/1537953716) | [Carlo Terracciano](https://appshunter.io/developer/1159639539) |

## What reviewers say

### R2R

[App page](https://appshunter.io/ios/app/r2r-advanced-chemistry/id1268437563)

This educational app helps students revise chemistry topics by asking targeted questions. It identifies weak areas and allows for random or topic-specific practice. An optional upgrade provides over 500 additional questions.

**Highlights:** Targeted chemistry questions, Identifies weak revision topics, Random and topic-specific practice, Exam board tailoring, Optional extra question packs

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra Questions Pack | $0.99 | one-time |


### Physics Master Homework Tutor

[App page](https://appshunter.io/ios/app/physics-master-homework-tutor/id1453430489)

This app offers instant, step-by-step AI-powered solutions for physics problems, including a magic scanner to photograph and solve equations. It simplifies complex concepts, provides practice exercises, and includes a comprehensive formula library for effective test preparation.

**Highlights:** AI Physics Solver, Magic AI Scanner, Step-by-step solutions, Physics test preparation, Simplified theory explanations, Physics exercises and quizzes, Comprehensive formula library

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Physics · Monthly | $3.49 | per month |
| Physics · Monthly | $5.99 | per month |
| Physics · Monthly | $5.99 | per month |
| Physics · Annual | $8.49 | per year |
| Physics · Annual | $12.99 | per year |
| Physics · Annual | $24.99 | per year |
| Physics · Annual | $24.99 | per year |
| Unlock all stories | $0.99 | one-time |
| Lifetime Subscription Physics | $29.99 | one-time |
| Formulas & Solved Problems | $99.99 | one-time |

**What reviewers like**

- 👍 Helpful for understanding physics
- 👍 Great for studying concepts
- 👍 Breaks down topics understandably
- 👍 Good for brushing up knowledge
- 👍 Interesting questions

**What reviewers complain about**

- 💰 Too much paid content
- 💰 Limited free features
- 💰 Expensive subscription
- 💰 App requires payment for basic use
- 💰 Ads are intrusive

**Reported bugs**

- App does not load on iPhone 13 Pro Max
- Freezes on error message
- Calculator is clunky
- Difficult to navigate
- Poorly worded explanations

**Requested features**

- Increase support for Chinese language
- Access to image folder
- More free functions
- Option to purchase content by topic


## Frequently asked questions

### Is R2R free?

R2R is free to download, with in-app purchases available.

### Is Physics Master Homework Tutor free?

Physics Master Homework Tutor is free to download, with in-app purchases available.

### Which has better reviews, R2R or Physics Master Homework Tutor?

R2R is rated higher. R2R averages 5.0 out of 5 from 9 ratings, while Physics Master Homework Tutor averages 4.4 from 136 ratings.

### Do R2R or Physics Master Homework Tutor have ads?

Physics Master Homework Tutor shows ads; R2R does not.

### Which is updated more often, R2R or Physics Master Homework Tutor?

R2R ships an update every 3 months, and Physics Master Homework Tutor every 4 weeks. Most recently, R2R was updated on November 3, 2026 and Physics Master Homework Tutor on November 3, 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.*