# MarineCards vs Master

The clearest difference is review sentiment: Master at 97% against MarineCards's 36%. Master also leads on rating (4.8 vs 3.0) and in-app purchases (none vs 3). MarineCards's advantage is price (Free vs $1.99) and iOS requirement (7.0 vs 15.0). On ads and device support there is nothing between them.

MarineCards is free to download; Master costs $1.99 up front. MarineCards sells 3 one-off in-app purchases. Master asks for nothing beyond the download.

Master holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Master has 100 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 36% of MarineCards's written reviews are positive against 97% of Master's.

MarineCards ships an update every 4 months, Master fortnightly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | MarineCards | Master |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/marinecards/id1056258533/reviews) | **[4.8 (100 ratings)](https://appshunter.io/ios/app/master-nav/id1602390396/reviews)** |
| Number of ratings | 3 | **100** |
| Positive reviews | 36.4% of reviews | **96.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 20 MB | 117 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Evgeny Romanov](https://appshunter.io/developer/1056258532) | [Peterjohn Chisholm](https://appshunter.io/developer/1602390398) |

## What reviewers say

### MarineCards

[App page](https://appshunter.io/ios/app/marinecards/id1056258533)

Learn navigation rules with interactive flashcards. Covers IRPCS, navigation marks, and lights. Additional card packs are available for purchase to expand your knowledge.

**Highlights:** IRPCS flashcards, Navigation marks and lights, IALA A buoyage, Rules of the Road, Vessel lights, Real buoy and vessel images

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buoyange IALA A | $0.99 | one-time |
| IRPCS rules of road | $0.99 | one-time |
| Vessels' lights | $0.99 | one-time |


### Master

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

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 MarineCards free?

MarineCards 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, MarineCards or Master?

Master is rated higher. MarineCards averages 3.0 out of 5 from 3 ratings, while Master averages 4.8 from 100 ratings.

### Do MarineCards or Master have ads?

Neither MarineCards nor Master shows ads.

### Which is updated more often, MarineCards or Master?

MarineCards ships an update every 4 months, and Master fortnightly. Most recently, MarineCards was updated on October 24, 2026 and Master on October 27, 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.*