# Master vs Shiprepair

The clearest difference is update cadence: Master at fortnightly against Shiprepair's every 13 months. Master also leads on iOS requirement (15.0 vs 17.5). Shiprepair's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support there is nothing between them.

Master costs $1.99 and Shiprepair $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Master ships an update fortnightly, Shiprepair every 13 months. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Master | Shiprepair |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.8 (100 ratings)](https://appshunter.io/ios/app/master-nav/id1602390396/reviews)** | — |
| Number of ratings | **100** | — |
| Positive reviews | 96.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 13 months |
| Monetization | Paid | — |
| Size | 117 MB | 25 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Peterjohn Chisholm](https://appshunter.io/developer/1602390398) | [OLEKSANDR IZERGIN](https://appshunter.io/developer/1678396126) |

## What reviewers say

### 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


### Shiprepair

[App page](https://appshunter.io/ios/app/shiprepair/id6458875871)

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

**In-app purchases:** none


## Frequently asked questions

### Is Master free?

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

### Is Shiprepair free?

Shiprepair costs $0.99, with no in-app purchases.

### Do Master or Shiprepair have ads?

Neither Master nor Shiprepair shows ads.

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

Master ships an update fortnightly, and Shiprepair every 13 months. Most recently, Master was updated on October 25, 2026 and Shiprepair on October 10, 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.*