CoNav

CoNav

Deck Officer's Tools

6 ratings
25 reviews
#148 in paid Navigation
🗺️ Navigation
$6.99

Price history


Details

  • Released
  • Updated
  • March 24, 2019
  • July 22, 2026

Features

CoNav screenshot #1 for iPhone
CoNav screenshot #2 for iPhone
CoNav screenshot #3 for iPhone
CoNav screenshot #4 for iPhone
CoNav screenshot #5 for iPhone
CoNav screenshot #6 for iPhone
CoNav screenshot #7 for iPhone
CoNav screenshot #8 for iPhone
CoNav screenshot #9 for iPhone
CoNav screenshot #10 for iPhone
🖼️Get Icon
Icons↘︎

About

This app provides essential tools for deck officers, including compass error calculation, celestial navigation, and ETA calculations. It offers offline functionality with precise algorithms for various maritime tasks, such as unit conversion and port information.

Compass Error Calculation
Celestial Navigation
ETA Calculation
Port UN LOCODE Database
Units Converter
True Wind Calculation
Offline Functionality
Show original description
+1

What's New in CoNav

2.6.3

July 22, 2026

Performance improvements.

Charts

Top Paid

📉 148-3

Navigation

This app dropped -3 positions in Navigation chart.

Last updated on July 28, 2026.

User reviews

Wonderful app

Perform an update to the geographic coordinate conversion feature, with particular emphasis on conversions from UTM to WGS84.

Wind

Приложение супер, лучше для айфона нету, поправку считает четко, проверял с альманахом, все сходится, маленькая просьба, а можно ли добавить ввод скорости судна в ручную, иногда 14,5 узлов скорость, для более точно расчета ветра, мелочь но будет приятно) - спасибо добавили вы лучшие!!

Ещё одна просьба, а возможно в конвертер добавить солёность воды, допустим 1.030 в ppt - 40, для Канады и других портов считать.

Пользуюсь постоянно всеми функциями, пока самое нужное приложение, есть ещё идеи.)
Show more

Response from developer

Спасибо за отзыв. В следующем обновлении добавим ввод всех параметров вручную.

Feedback

All working good

Huge time saver

Use this app daily while on ship for ETA calculations, compass errors and estimating sunrise and sunset. I’ve tested the compass errors against my own calculations and come out almost exactly the same (within the margin of error you’d expect for rounding). The entire bridge team onboard now uses it and recommend it to all.
Show more

Celestial не работает

Celestial не работает. Приложение закрывается при нажатии fix. Это прям существенный минус в платном приложении. Неприятненько

Response from developer

Спасибо за отзыв и что сообщили о проблеме! Я уже работаю над исправлением ошибки с кнопкой Fix в разделе Celestial — обновление выйдет совсем скоро. Очень ценю ваше терпение и поддержку. Если что-то ещё не работает как ожидалось — дайте знать, всё обязательно улучшу!

Developer apps

FAQ

What is CoNav?

CoNav is a suite of offline tools for deck officers, offering features like compass error calculation, celestial navigation, and ETA calculations. It aims to enhance safety and efficiency in maritime operations.

Does CoNav work offline?

Yes, CoNav runs entirely offline. All calculations are performed within the app using sophisticated algorithms, ensuring functionality even without an internet connection.

What devices support CoNav?

CoNav is currently supported on iPhone devices. The app was last updated on February 24, 2026, with version 2.6.0.

How much does CoNav cost?

CoNav is a paid application, priced at $6.99. There are no in-app purchases or advertisements associated with this app.

What kind of calculations does CoNav offer?

CoNav offers a wide range of calculations including compass error, celestial navigation with three position lines, ETA, unit conversions across 15 dimensions, and true wind calculation.

Is CoNav suitable for beginners?

CoNav is designed for deck officers, implying a certain level of maritime knowledge. However, its comprehensive tools and offline capability make it a valuable asset for professionals.

How often is CoNav updated?

The latest version of CoNav is 2.6.0, last updated on February 24, 2026. While specific update frequency isn't detailed, the app has seen consistent development since its release in 2019.

What is the age rating for CoNav?

CoNav has an age rating of 4+, making it suitable for a broad audience. The app focuses on professional maritime tools.