# Sailing Master M vs PyNav

The clearest difference is iOS requirement: PyNav at 13.4 against Sailing Master M's 17. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Sailing Master M sells 1 in-app purchase, starting at $11.99 per year and PyNav sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Sailing Master M ships an update every 2 months, PyNav every 5 weeks. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Sailing Master M | PyNav |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sailing-master-m/id1566599912/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 25 MB | 14 MB |
| Requires iOS | 17 | **13.4** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pekka Leppanen](https://appshunter.io/developer/1566599914) | [CL Consulting](https://appshunter.io/developer/6779253059) |

## What reviewers say

### Sailing Master M

[App page](https://appshunter.io/ios/app/sailing-master-m/id1566599912)

This app provides comprehensive sailing data and performance optimization on various Apple devices. It displays over 35 sailing measurements from boat instruments, polars tables, and nautical charts, offering detailed wind, route, and map views. Connectivity is established through NMEA 0183 Wi-Fi gateways.

**Highlights:** Configurable data displays, 35+ sailing measurements, Wind, route, and map displays, NMEA 0183 Wi-Fi connectivity, Polars table integration, Nautical chart overlays

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro annual | $11.99 | per year |


### PyNav

[App page](https://appshunter.io/ios/app/pynav/id6779253057)

This app provides NMEA instrument data and remote control for a pypilot autopilot. It can function as a standalone navigation hub, displaying wind, engine, and GPS data with customizable panels and configurable alarms.

**Highlights:** Pypilot autopilot control, NMEA instrument display, Customizable dashboard panels, Wind and engine data, GPS and waypoint navigation, Configurable alarms

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PyNav Pro | $7.99 | one-time |


## Frequently asked questions

### Is Sailing Master M free?

Sailing Master M is free to download, with in-app purchases available.

### Is PyNav free?

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

### Do Sailing Master M or PyNav have ads?

Neither Sailing Master M nor PyNav shows ads.

### Which is updated more often, Sailing Master M or PyNav?

Sailing Master M ships an update every 2 months, and PyNav every 5 weeks. Most recently, Sailing Master M was updated on October 13, 2026 and PyNav on October 9, 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.*