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SeaNav US - HD Marine Navigation with US NOAA Nautical Charts

By Pocket Mariner Ltd.

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Explore, Plan and Navigate your boating trips in real time and outstanding high-resolution with the latest NOAA ENC Digital Vector Marine charts covering the whole of the USA and Great Lakes.

- Includes US Coastal and Great Lakes Charts.
- Buoys, lights etc. are tappable with bearing and distance.
- Seamless fast panning and zooming across charts.
- Live Augmented Reality camera view.
- Route Planning and tracking with Waypoints, SOG, COG, ETA etc.
- Support for Pebble Smartwatch
- Offline charts
- Route export, import and sharing
- Live AIS Ship positions (requires Boat Beacon app)
- 1 year of free chart updates.

SeaNav is a Universal app, which works on both iPad and iPhone.

SeaNav uses Digital Vector charts providing a wealth of benefits and advantages over raster charts. Buoys, Lights, Bridges, Depth Contours, Depth Soundings, Rocks, Anchorage areas, NOAA Weather Buoys etc. are all selectable and have real time distance, bearing and detail information. Turn off layers to de-clutter the display and only show what is important at the time. Tides, moon and sun times and weather are also all available at your fingertips.

SeaNav’s unique AR view mode allows you to view buoys, lights, ships, waypoints and track overlaid on your iPhone or iPad live camera view. With "AR LockOn" you can select a target on the chart and then be guided to it in the AR camera view.

SeaNav lets you measure distances and bearings and record waypoints on routes. When at sea, the app’s Sailing HUD shows your position, Course over ground (COG), Speed over ground (SOG), Vector Made Good (VMG), Estimated Time of Arrival (ETA), Distance and bearing to next Waypoint. Waypoint reached alerts, auto-routing to the next waypoint and collision alerts.

SeaNav has a great free Pebble app available for those with the Pebble Smartwatch. Lowrance, Simrad and B&G GoFree support included free.

Your purchase of SeaNav includes 12 months free updates to the included US chart set.

At the end of the 12 month period continued access to ongoing chart updates is available via an in-app purchase. Charts for other regions may also be added to your product via optional in-app purchase.

Our in-app purchases are 1 year subscriptions, which automatically renew at the end of the subscription period unless auto-renew is turned off at least 24-hours before the end of the current period. Payment will be charged to your iTunes Account at confirmation of purchase, and will be charged for renewal within 24-hours prior to the end of the current period. Pricing for our 1 year US Charts update subscription is US$9.99.

Subscriptions may be managed by the iTunes account holder and auto-renewal may be turned off by going to Account Settings after purchase.

No cancellation of the current subscription is allowed during active subscription period.

Our Privacy Policy may be accessed via

Requires iPhone or iPad. GPS only required for real time route navigation. Optional Real time AIS, Tides and Weather information require an active internet connection.

Real-time route navigation requires a GPS location. iPhone devices and iPads with a cellular modem already have a built-in GPS, even if they do not have an active service plan.

If you have a WiFi-only iPad or iPod you will need an external GPS receiver to enable navigation. Inexpensive 3rd Party units are available to add these accurate location capabilities to your device via bluetooth.

Please note that continued use of GPS running in the background can dramatically decrease battery life.


This program is distributed in the hope that it will be useful. SeaNav should only be used for basic navigation reference and should not be solely relied upon to determine precise locations, proximity, distance, or direction.

Third Party Licenses and Notices
NOTICE: US Marine Charts are derived from official NOAA Electronic Navigational Charts.

What's New in Version 3.2.6

Enhanced Ship AIS:-
Rate of turn vectors showing bending ship course prediction.
Relative scale ship icons - so big ships appear bigger.
Ship names displayed on map - so you can see the ships' names without having to tap on them.

Live View IAP option (requires Boat Beacon) providing
- AR Camera view to spot ships including range and bearing and "Target lock"
- AIS data as soon as it is transmitted - as good as ,if not better than, having your own VHF AIS receiver on board
- Ships drawn at true scale size when zoomed in on the map - vital for seeing the size of the gap or passage around large vessels.

Fix for occasional chart lock up in v 3.2.
Fix for crash on iOS7
Fix for AR mode on iOS8

If you enjoy SeaNav, please leave a review or rating. If you have previously review or rated SeaNav, please update your review so that it reflects your opinion of our most recent release. If you have issues or problems, please contact us via our support links, we do not have any way to respond to comments left in reviews.


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Customer Reviews

Crashed 5 times in the first 15 minutes - Yuk

Crashed so often that I couldn't even view harbors. Vey allow on my LTE iPad Mini.
Depth contours 0-18', 18-30', and 30-600'are less than ideal. I would want to navigate my boat using this app and its maps.

SeaNav US - HD Marine Navigation with US NOAA Nautical Charts
View In iTunes
This app is designed for both iPhone and iPad
  • $19.99
  • Category: Navigation
  • Updated: Jan 19, 2015
  • Version: 3.2.6
  • Size: 18.5 MB
  • Language: English
  • Seller: Pocket Mariner Ltd.

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
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Top In-App Purchases

  1. US Chart Updates$9.99
  2. UK Charts$13.99