# PyNav — NMEA Display & Pypilot Remote

> NMEA navigation hub and pypilot autopilot remote for sailors. (iPhone/iPad app by CL Consulting.)

- Source: https://appshunter.io/ios/app/pynav/id6779253057 (this page in markdown: same URL + `.md`)
- Developer: [CL Consulting](https://appshunter.io/developer/6779253059)
- Category: Navigation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.4 · 14 MB
- Languages: American English
- Released: 2026-07-11
- Data updated: 2026-09-07
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/pynav/id6779253057/reviews.md

## What is PyNav?

NMEA NAVIGATION HUB + PYPILOT REMOTE CONTROL

PyNav serves two kinds of sailors:
- Have a pypilot autopilot? Control it from your iPhone/iPad AND display all your NMEA instruments.
- No pypilot? Use PyNav as a standalone professional NMEA navigation hub.

FREE VERSION - Autopilot tab + Settings

Full control of the pypilot autopilot:
- Engage / disengage the autopilot
- Modes: compass, wind, GPS, true wind, navigation
- Current heading + target heading entry
- Real-time rudder angle indicator
- IMU data: pitch, roll, heel, rate of turn
- Full PID gain tuning (P, I, D, DD, PR, FF, WG, Deadzone)
- IMU compass and rudder calibration
- Tack settings
- Pilot profiles (basic, wind, gps, simple, rate, absolute)
- Servo stats: amp-hours, voltage, temperatures, runtime
- Direct WiFi connection to the pypilot Raspberry Pi hotspot - no router needed

The free version gives access to pypilot data only - no external NMEA instruments.

PRO VERSION - Complete navigation hub

One-time purchase, lifetime - no subscription.
Works WITH or WITHOUT pypilot. Just needs a NMEA/WiFi module and an iPhone or iPad.
Optimized for iPad - also works on iPhone with adapted layout.

DASHBOARD - Customizable unified view
6 configurable, drag-and-drop panels:
- Wind: dynamic rose or raw data grid
- Navigation: SOG, COG, GPS data
- Autopilot: engage/disengage, target heading, rudder indicator, IMU
- Depth: color-coded
- Pressure: hPa value, 3h trend, history chart
- Engine: RPM with color coding (nominal / warning / danger)
Resizable panels, 1 or 2 column layout.

WIND - Apparent and true wind
Dynamic wind rose, 5-minute history chart, real-time AWA/AWS/TWA/TWS.

ENGINE INSTRUMENTS
RPM, coolant and oil temperature/pressure, battery/alternator voltage, engine hours, fuel flow, exhaust and sea water temperature, gearbox state (Fwd/Neutral/Rev), transmission oil. Tank gauges: port/starboard fuel, fresh water, grey and black water. Unlimited custom charts (any parameter vs RPM or time).

NAV - GPS and waypoint navigation
Compass rose, true and magnetic heading, SOG, COG, STW, latitude/longitude (DD°MM'SS), waypoint navigation (bearing BTW, distance DTW, cross track error XTE), arrival indicator.

CONFIGURABLE ALARMS
On all NMEA data: depth, speed, heading, pressure, wind, RPM, temperatures, oil pressures, voltages, fuel levels, rudder angle. Each alarm: custom name, threshold, condition, individual on/off. Triggers: sound + vibration + on-screen banner.

TECHNICAL REQUIREMENTS
Free: iOS 13.4+, working pypilot setup (Raspberry Pi), direct WiFi connection to pypilot hotspot.
PRO: any TCP/UDP NMEA/WiFi module (Yacht Devices, Quark-elec, Digital Yacht, Hat Labs, Actisense...) + iOS 13.4+. Pypilot optional.
Supported protocols: NMEA 0183, NMEA 2000 Raw, Pypilot (TCP).

SAFETY WARNING
PyNav is a navigation interface. It does not replace mandatory navigation equipment. The skipper remains SOLELY RESPONSIBLE for navigation. Permanent watch at sea is MANDATORY. Pypilot is an open-source DIY project provided "as-is".

PRIVACY
No navigation data is sent to external servers. Runs 100% locally on your onboard network. No ads, no tracking.

LEGAL
Publisher: CL Consulting SASU - SIRET 94261399300016. GDPR compliant.
Pypilot is an independent open-source project (Sean D'Epagnier, GPLv3). PyNav is not affiliated with the pypilot project.

## Key features

- Pypilot autopilot control
- NMEA instrument display
- Customizable dashboard panels
- Wind and engine data
- GPS and waypoint navigation
- Configurable alarms

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/pynav/id6779253057/reviews.md

### 5/5 — Navigation

*2026-08-23*

Facile d’utilisation super

## Frequently asked questions about PyNav

### What can I do with the free version of PyNav?

The free version of PyNav allows you to control a pypilot autopilot, including engaging/disengaging, setting modes, and viewing IMU data. It also provides access to pypilot settings and calibration options.

### What features are included in the Pro version of PyNav?

The Pro version offers a complete navigation hub with a customizable dashboard, wind and engine instruments, GPS and waypoint navigation, and configurable alarms. It works with or without a pypilot and requires a NMEA/WiFi module.

### How much does the Pro version of PyNav cost?

The Pro version of PyNav is a one-time purchase for lifetime access, with no subscription required. The current price is listed as 'Free' for the base app, with Pro features likely unlocked via in-app purchase.

### Does PyNav have ads?

No, PyNav does not contain advertisements. The app is free to download with optional Pro features available for purchase.

### What devices is PyNav compatible with?

PyNav is compatible with iPhone, iPad, and iPod devices. It is optimized for iPad but also works on iPhone with an adapted layout.

### What are the technical requirements for PyNav?

The free version requires iOS 13.4+ and a working pypilot setup with a direct WiFi connection. The Pro version requires iOS 13.4+ and any TCP/UDP NMEA/WiFi module, with pypilot being optional.

### How often is PyNav updated?

PyNav was last updated on August 18, 2026, with version 1.4. This indicates a relatively recent update frequency, suggesting ongoing development and support.

### Is PyNav suitable for younger users?

PyNav has an age rating of 4+, indicating it is suitable for a wide range of users. However, its complex navigation features are primarily intended for adult sailors.

## Version history (last 2 releases)

### 1.4 — 2026-08-18

Auto Tack (beta)
Tack with a single tap. PyNav works out which way you're tacking from the apparent wind angle and heel, and asks you if it can't tell for sure. The usual cancelable countdown still applies before the helm moves, so you keep the finalsay. 
Marked beta while it gets time on the water — read the one-time warning before your first tack.

Device GPS fallback
No GPS on your NMEA network? PyNav now falls back to your iPhone or iPad's own GPS for position, COG and SOG, and shows a DEVICE GPS badge so you always know where the fix is coming from. It switches back automatically as soon as NMEA GPS data appears.

Stability
Fixed a crash that could occur when pypilot reported non-numeric IMU values.

### 1.0 — 2026-07-11

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*