# Master vs NautiNote

The clearest difference is price: NautiNote at Free against Master's $1.99. Master's advantage is in-app purchases (none vs 8) and chart position (#119 vs unranked). On update cadence, ads, device support and iOS requirement there is nothing between them.

NautiNote is free to download; Master costs $1.99 up front. NautiNote sells 8 in-app purchases, starting at $5.99 per month. Master asks for nothing beyond the download.

Master ships an update fortnightly, NautiNote monthly. The most recent releases landed on October 22, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Master | NautiNote |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| 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** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Paid | — |
| Best chart rank | **#119** | — |
| Size | 117 MB | 41 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Peterjohn Chisholm](https://appshunter.io/developer/1602390398) | [Kennett Sinclair](https://appshunter.io/developer/1879999559) |

## What reviewers say

### Master

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

**Currently charting:** #119 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


### NautiNote

[App page](https://appshunter.io/ios/app/nautinote/id6759640337)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| COLREGS Monthly | $5.99 | per month |
| Chief Monthly | $24.99 | per month |
| EOOW Monthly | $24.99 | per month |
| Officer of the Watch Monthly | $24.99 | per month |
| COLREGS Annual | $49.99 | per year |
| SV EOOW Annual Access | $179.00 | per year |
| Chief Annual | $179.00 | per year |
| OOW Annual | $179.00 | per year |


## Frequently asked questions

### Is Master free?

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

### Is NautiNote free?

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

### Do Master or NautiNote have ads?

Neither Master nor NautiNote shows ads.

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

Master ships an update fortnightly, and NautiNote monthly. Most recently, Master was updated on October 22, 2026 and NautiNote on October 8, 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.*