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SeaNav US

SeaNav US

HD Marine Navigation & Charts

98 ratings
33 reviews
#186 in paid Navigation
✈️ Travel
🗺️ Navigation
$19.99
In-App Purchases

Details

  • Released
  • Updated

Features

Developer

Pocket Mariner Ltd.
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iphone
ipad
🧾$4.99 - $29.99
In-App Purchase↘︎
📉no. 186
Charts↘︎
⭐33
Reviews↘︎
📝3+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 3 months
Updates frequency↘︎
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About

Navigate boating trips with high-resolution NOAA marine charts for the USA and Great Lakes. Features include live AIS, augmented reality views, route planning, and offline chart access. Integrates with ActiveCaptain and external devices.

✓High-resolution NOAA marine charts
✓Live AIS ship targets and collision alerts
✓Augmented Reality camera view
✓Route planning and tracking
✓Offline charts
✓ActiveCaptain integration
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What's New in SeaNav US

5.5.4

June 1, 2026

Satellite view improvements, larger own boat symbol, configurable sog and cog vectors for own boat and other ships. SeaNav autoroute: Set start and end point for a route and let SeaNav propose a route and waypoints including the ICW SeaNav AutoPilot: Navigate routes automatically. SeaNav can now remotely control Raymarine and Navico/Simrad/Lowrance Auto tillers and helms. You can also use the free SeaNav Apple Watch app to control a Raymarine autohelm and tiller from your wrist. iOS 26 updates.

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Subscription plans

US Chart Updates

Continue receiving the latest NOAA digital vector chart updates and new charts from the SeaNav US Chart service.

$19.991 Year
How to cancel SeaNav US subscription ⁉️
7

In-App Purchases

$4.99

Man Overboard & Anchor Watch

Monitor anchor drift and track Man Overboard

Charts

Top Paid

📉 186-8

Navigation

This app dropped -8 positions in Navigation chart.

Last updated on July 23, 2026.

User reviews

Most RecentHighest RatedLowest Rated

AIS integration

The integration with my em-trak AIS receiver/transmitter is the killer feature. That lets me do heavy-duty nav/piloting in the iOS/WiFi universe rather than in some manufacturer's proprietary OS universe and the nichey, expensive, specialized marine networking universe.
Ted in NCTed in NC

Removing ‘Crashes on open’ comment

SeaNav has always worked well for me but recently after updating my subscription it crashed on open for about 2 days on my iPhone 16. A reboot and reinstall did not help. However after this time the app works again. Upgrading review to 4 star but suggest not changing subscription during a stormy day out sailing.
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Johnd44Johnd44

Crashes on open

Since renewing the subscription for US charts this app crashes as soon as these charts load. Unfit for purpose.
Johnd44Johnd44

Deceptive

Product doesn’t allow you to try before it charges you and then refuses refund. Beware
Bobsully53Bobsully53

Hard to use

Difficult
Annoyed menstruatorAnnoyed menstruator
See 28 more reviews

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FAQ

What does SeaNav US do?

SeaNav US is a marine navigation application that provides high-resolution NOAA marine charts for the USA and Great Lakes. It allows users to explore, plan, and navigate their boating trips in real-time with features like live AIS, augmented reality views, and route planning.

What are the key features of SeaNav US?

Key features include high-resolution NOAA Digital Vector and Raster charts, live AIS ship targets with collision alerts, a unique augmented reality camera view, route planning with waypoints and autorouting, offline chart access, and integration with ActiveCaptain for marinas and hazards.

How much does SeaNav US cost?

The app itself is free to download. The included US chart set comes with 12 months of free updates. Further chart updates and charts for other regions like Canada or the British Virgin Islands are available via yearly in-app purchase subscriptions, costing $9.99 for US chart updates.

What devices is SeaNav US compatible with?

The app is available for iPhone and iPad. It also includes a free Apple Watch companion app. It supports external NMEA over Wifi and integrates with Lowrance, Simrad, and B&G GoFree devices.

What are common use cases for SeaNav US?

Common use cases include planning and executing boating trips, navigating coastal waters and inland waterways, tracking other vessels with AIS, using augmented reality to identify navigation aids, and finding marinas or anchorages using ActiveCaptain data.