SeaNav UK & Ireland5.5.4 - App Store

Explore, Plan and Navigate your boating trips in real time and outstanding high-resolution with the latest Digital Vector Marine charts derived from UKHO data covering the whole of the UK and Ireland.

- Price includes all UK & IE Charts, tides and tidal streams
- European & BVI charts available (IAP)
- Free compandion Apple Watch app
- Live AIS Ship positions with colour coded ship icons and collision alerts - requires Boat Beacon
- Live Augmented Reality camera view
- Route Planning and real time tracking including auto-routing
- Autopilot support for Raymarine and Navico autohelms
- Seamless panning and zoom across charts
- North and course up displays
- Offline Charts
- Route import and sharing to MFDs and other apps via gpx
- Favourite Places
- Air Draft: Check your boat's clearance under bridges and cables

SeaNav uses the latest Digital Vector charts providing a wealth of benefits and advantages over traditional raster charts. Buoys, Lights, Bridges, Depth Contours, Depth Soundings, Rocks, Anchorage areas etc. are all selectable and have real time distance, bearing and detail information. Tides, moon and sun times and weather are also all available at your fingertips.

Our 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.

In-app tools let you measure distances and bearings and record waypoints on routes to sail. When you are out at sea, the app’s Sailing HUD shows your position on the route, 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 flashing collision alerts (with Boat Beacon).

External NMEA support for AIS, Autopilot, Wind and Depth

Requirements:
iPhone or iPad. 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 you will need an external GPS receiver or feed to enable navigation.

Your purchase of SeaNav includes 12 months free updates to the included UK 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.

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.

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

Terms of Use: http://seanav.net/termsofuse.php
Privacy Policy: http://seanav.net/privacy.php
Support: help@pocketmariner.com

Third Party Licenses and Notices
“THIS PRODUCT IS NOT TO BE USED FOR NAVIGATION” The use of this product for the planning and execution of passages will not meet the requirements of SOLAS

“NOTICE: Instituto Hidrográfico de la Marina (IHM) and the UK Hydrographic Office (UKHO) make no warranties or representations, express or implied, with respect to this product. The Instituto Hidrográfico de la Marina (IHM) and the UKHO have not verified the information within this product or quality assured it.”

Version History Satellite view improvements (Hybrid now shows satellite view of drying land areas), 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. 5.5.4 Jun 2 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. 5.5.1 Mar 17 Improved ruler UI :- endpoints now easier to select & drag and magnifier view added to show what's under your finger for more exact placement.
Improvements to offline handling.
Battery level indicator for iPhone landscape mode
Time sensitive alerts for anchor watch and CPA. 5.4.20 09/25/2025 Weather forecast overlay with animated Wind, Waves and currents for next 7 days (IAP)
Chart update improvements 5.4.18 06/12/2025 Man overboard (MOB) and Anchor Watch features added (IAP).

-Anchor Watch alerts if drifted more than the anchor length or dirfts at more than 1 Knot
-MOB and Anchor buttons on the mainscreen top left (can be turned off in settings)
-MOB distance, bearing and time in water displayed
-MOB takes priority over Anchor Watch
-Anchor Watch also provides an email alert with a map
-SeaNav remains in sailing mode when MOB or Anchor are cleared.
- Check the userguide for more information about using Anchor Watch and Man Overboard 5.4.16 03/06/2025 UI Improvements
Updated for iOS 18 5.4.12 12/20/2024 UI Improvements and fixes
-Quick Link to Boat Beacon button added (top right) - Boat Beacon also has a quick link back to SeaNav
-Request to launch Boat Beacon on start sailing now defaulted to not show( re-enable in Advanced settings or just use the new Boat Beacon quick link button).
-iPhone landscape mode now displays current time again
-iPad instruments side panel in landscape displays time
-SART TEST targets no longer fire an alarm
-Weather map now scrolls up and down 5.4.9 06/17/2024 Charts for the whole of France and Portugal now available
Fix for updatable charts that have not been updated not displaying if SeaNav is not connected to the internet. 5.4.4 08/28/2023 Apple Watch App greatly improved Nav, Waypoint, Map ,CPA Alerts & new real time wind display

My Boat Details now lets you set the type - e.g. Sail, Pleasure, Fishing.
Own boat icon now bigger so more easily viewed and colour shows boat type.
Bridges, Shoreline and Traffic zones UI improvements
Flashing light patterns updated for South Cardinals

Realtime local wind instrument using SeaNav's Weather feed (IAP) or NMEA over Wifi
Improved Instruments for Nav (inc. Depth), Waypoints & Wind
Export tracks and routes as GPX (e.g to MFDs, Chart plotters and Navionics)
Export and import all POIs
Settings for Auto/Day/Night mode display
iOS16 ready 5.4.2 03/23/2023 Apple Watch App greatly improved Nav, Waypoint, Map ,CPA Alerts & new real time wind display
Realtime local wind instrument using SeaNav's Weather feed (IAP) or NMEA over Wifi
Improved Instruments for Nav (inc. Depth), Waypoints & Wind
Export tracks and routes as GPX (e.g to MFDs, Chart plotters and Navionics)
Export and import all POIs
Settings for Auto/Day/Night mode display
iOS15 ready 5.4 04/13/2022 Improvements to seamless chart coverage
Improvements to In App Purchase experience
Fix for charts not drawing if no internet after fresh launch of the app 5.3.5 08/13/2021 Much faster chart drawing on newer Apple devices ( iPhone 9 and later and iPad 6th gen and later)

Support for iOS Dark mode - better for night time vision and use.

SeaNav iOS and its charts now works on the new MacBook M1.

Cardinal mark light patterns now displayed correctly in light details

Supports full screen width on new iPad Pros

Fix for Apple Watch app sometimes getting stuck 5.3.3 06/16/2021 Tidal Streams ( rate and direction ) for UK & IE, now and predicted out to 4 days with graph (requires up to date UK & IE chart subscription)
Dark mode support for sailing at night
Cardinal mark light patterns now displayed correctly in light details
Simulation mode lets you try out sailing a route and all the navigation tools plus experience all the additional IAP features like AIS, Charts, Weather, AR mode etc. for free.
Support for iPhone X full screen - charts now go all the way to the edges.
Detailed animated weather forecast maps including wind, waves & pressure from now up to the 2 weeks ahead based on GFS model as used by NOAA and other leading Met Offices (IAP required).
Minor fixes 5.3 02/18/2021 Support for iPhone X full screen - charts now go all the way to the edges.
Detailed animated weather forecast maps including wind, waves & pressure from now up to the 2 weeks ahead based on GFS model as used by NOAA and other leading Met Offices (IAP required).
Simulation mode lets you experience all the features for free.
UI improvements 5.1 05/24/2019 Fix for location services not working in version 4.8.1
Fix for SeaNav crashing when SeaNav Watch app is launched
Ship AIS Safety Messages now shown ( ship icon will flash if it is broadcasting a Type 14: Safety-Related Broadcast Message)
Collision detection Time to Collision and Distance collision guards can now be changed from the default of 200m in 10 minutes to any distance and time and can also be disabled by setting CPA Time to 0 - See Boat Details in SeaNav Settings..
POI Manage/Add new POI bug fix.
Fixes for using local AIS over Wifi for own boat location ( AIVDO message - speed and heading now correct) 4.8.2 11/02/2018 Fix for SeaNav crashing when SeaNav Watch app is launched
Ship AIS Safety Messages now shown ( ship icon will flash if it is broadcasting a Type 14: Safety-Related Broadcast Message)
Collision detection Time to Collision and Distance collision guards can now be changed from the default of 200m in 10 minutes to any distance and time and can also be disabled by setting CPA Time to 0 - See Boat Details in SeaNav Settings..
POI Manage/Add new POI bug fix.
Fixes for using local AIS over Wifi for own boat location ( AIVDO message - speed and heading now correct) 4.8.1 10/31/2018 NMEA instrument support for depth added and split screen iPad instruments view for wind and depth.
Updated Apple Watch app including crown support and adjustable countdown timer.
Fixed Notifications and alerts for iOS and Watch.
Improved search function.
General UI fixes and updates. 4.7 07/14/2018 iOS11 ready.
NMEA Wind, Depth and Boat Speed instruments added. 4.3 09/18/2017 Fix to re-enable location tracking in background when in Sailing Mode.
Fix for weather information.

4.2 added:-
Favourite Places (POIs):- Add markers for places you want to remember, add a photo and share them with friends too. Add fishing spots with a photo of the one that didn't get away, diving locations, cosy anchorages, hazards, reminders to call in on a VHF channel etc.

Air Draft: See if your boat will fit under a bridge or cable you are approaching in our unique augmented reality view. 4.2.1 07/12/2017 Favourite Places (POIs):- Add markers for places you want to remember, add a photo and share them with friends too. Add fishing spots with a photo of the one that didn't get away, diving locations, cosy anchorages, hazards, reminders to call in on a VHF channel etc.

Air Draft: See if your boat will fit under a bridge or cable you are approaching in our unique augmented reality view.

Ruler for measuring bearings in AR mode when sailing. 4.2 06/28/2017 Marine charts for the whole of Spain now available via IAP
Wind instruments added with support for NMEA Wind data via Wi-fi, GoFree and SailTimer ( http://pocketmariner.com/sailtimer ) via Bluetooth. Includes Apparent and True Wind direction and speed readouts. (update for new SailTimer API).
Apple Watch AIS support improvements.
Dropbox™ v2 support for route export and import 4.1 06/07/2017 Marine charts for the whole of Spain now available via IAP
SeaNav now supports the iPod too
Fix for charts not downloading on fresh install on iOS10
Wind instruments added with support for NMEA Wind data via Wi-fi, GoFree and SailTimer ( http://pocketmariner.com/sailtimer ) via Bluetooth. Includes Apparent and True Wind direction and speed readouts. (update for new SailTimer API).
Apple Watch AIS support improvements.
AR view can now show course up as well as heading up view 3.8.4 01/16/2017 Marine charts for the whole of Spain now available via IAP
SeaNav now supports the iPod too
Fix for charts not downloading on fresh install on iOS10
Wind instruments added with support for NMEA Wind data via Wi-fi, GoFree and SailTimer ( http://pocketmariner.com/sailtimer ) via Bluetooth. Includes Apparent and True Wind direction and speed readouts. (update for new SailTimer API).
Apple Watch AIS support improvements. 3.8.3 09/30/2016 Wind instruments added with support for NMEA Wind data via Wi-fi, GoFree and SailTimer ( http://pocketmariner.com/sailtimer ) via Bluetooth. Includes Apparent and True Wind direction and speed readouts. (update for new SailTimer API).
Apple Watch AIS support improvements. 3.8.2 07/04/2016 Wind instruments added with support for NMEA Wind data via Wi-fi, GoFree and SailTimer ( http://pocketmariner.com/sailtimer ) via Bluetooth. Includes Apparent and True Wind direction and speed readouts.
Apple Watch AIS support improvements. 3.8.1 06/08/2016