# OAR Tutoring vs Master

The clearest difference is price: OAR Tutoring at Free against Master's $1.99. OAR Tutoring also leads on ratings volume (302 vs 100) and iOS requirement (13.0 vs 15.0). Master's advantage is review sentiment (97% vs 61%) and in-app purchases (none vs 1). On rating, ads and device support there is nothing between them.

OAR Tutoring is free to download; Master costs $1.99 up front. OAR Tutoring sells 1 in-app purchase, starting at $14.99 per month. Master asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for OAR Tutoring against 4.8 for Master. Both are backed by a comparable volume of ratings — 302 and 100 respectively. Written reviews are what separate them: 61% of OAR Tutoring's written reviews are positive against 97% of Master's.

OAR Tutoring ships an update every 4 months, Master fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OAR Tutoring | Master |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.7 (302 ratings)](https://appshunter.io/ios/app/oar-tutoring/id1559364644/reviews) | **[4.8 (100 ratings)](https://appshunter.io/ios/app/master-nav/id1602390396/reviews)** |
| Number of ratings | **302** | 100 |
| Positive reviews | 60.9% of reviews | **96.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Freemium** | Paid |
| Best chart rank | — | **#196** |
| Size | 25 MB | 117 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Debbrata Das](https://appshunter.io/developer/1518771903) | [Peterjohn Chisholm](https://appshunter.io/developer/1602390398) |

## What reviewers say

### OAR Tutoring

[App page](https://appshunter.io/ios/app/oar-tutoring/id1559364644)

Prepare for the OAR exam with over 1400 practice questions covering math, reading, and mechanical comprehension. Access flashcards, homework problems, and practice tests. Offers optional one-on-one online tutoring sessions.

**Highlights:** 1400+ practice questions, Math Skills, Reading Comprehension, Mechanical Comprehension, Flashcards, Practice tests, Online tutoring

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full OAR Access | $14.99 | per month |

**What reviewers like**

- 👍 Good for OAR preparation
- 📈 Helps improve scores
- 🎯 Questions representative of actual test
- 💡 Useful prediction test
- ✅ Mechanical portion accurate

**What reviewers complain about**

- 💸 Expensive subscription model
- 💰 App purchase + subscription required
- 📉 Inaccurate predictions for some
- ⚠️ Math questions too easy
- 🤔 Hidden lesson topics

**Reported bugs**

- Login issues after registration
- App not working after purchase
- Cannot log in on computer/iPad
- Buggy performance on iPhone
- Glitchy answers

**Requested features**

- Provide explanations for all questions
- Make all content accessible without extra subscription
- Improve accuracy of reading comprehension section
- Make math questions adaptive
- Allow viewing of hidden lesson topics


### Master

[App page](https://appshunter.io/ios/app/master-nav/id1602390396)

**Currently charting:** #196 Top Paid · Education (US App Store)

Learn maritime navigation rules with an interactive system designed for effective retention. This app breaks down complex regulations into manageable sections with visual aids and mnemonics. It revisits incorrect answers and provides instant graphical feedback, making the learning process intuitive and efficient.

**Highlights:** Interactive learning system, Step-by-step rule guidance, Mnemonics and memory aids, Interactive visuals, Graphical feedback on answers, Practice section with progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is OAR Tutoring free?

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

### Is Master free?

Master costs $1.99, with no in-app purchases.

### Which has better reviews, OAR Tutoring or Master?

Master is rated higher. OAR Tutoring averages 4.7 out of 5 from 302 ratings, while Master averages 4.8 from 100 ratings.

### Do OAR Tutoring or Master have ads?

Neither OAR Tutoring nor Master shows ads.

### Which is updated more often, OAR Tutoring or Master?

OAR Tutoring ships an update every 4 months, and Master fortnightly. Most recently, OAR Tutoring was updated on October 24, 2026 and Master on October 25, 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.*