The SEAiq apps are the most powerful marine charting apps for the Apple iPads and iPhones.

The SEAiq apps are free to download. The free versions allow full vector and raster chart display and support for the Active Captain Interactive Cruising Guidebook.

Included with the download is a free 1-week evaluation for all premium features, including: Waypoints, Routes, Tracks, Internal GPS, External NMEA over WiFi AIS Night colors, automatic download of weather data, Anchor Alarm, Variable Range Markers and Electronic Bearing Lines (VRM/EBL). You can re-install the app for additional week of evaluation.

Our apps are purchased once and can then used on all your iPads, iPhones, and iPods.

SEAiq Free is the only app that automatically downloads and displays all vector and raster charts published by NOAA and US Army Corps of Engineers. SEAiq USA is the same as SEAiq Free but can be purchased as normal app (no in-app purchase).

SEAiq Open (for international use) is the only app that allows you to load your own S-57, S-63, iENC, CM93, and BSB/KAP charts on your iPad/iPhone.

SEAiq Pilot is the only iPad app designed for use by river and harbor pilots. It supports the same chart formats as SEAiq Open, and has support for additional features include: docking aids, bathymetric ENCs (bENC's), manual tidal adjustment, AIS meeting point, and GPS diagnostics.

Sunday, 30 March 2014

Problem with US Army Corps of Engineers Charts [UPDATED]

[UPDATE: The US Army Corps of Engineers has posted an updated chart catalog that fixes the problem.]

SEAiq users in the USA downloading the US Army Corps of Engineers charts for US rivers may have noticed many of the charts were lost in recent update.  This is caused by a change in the format of their chart catalog.  The US ACoE have been alerted and we are hoping for an updated chart catalog very soon.  We will post updates here as we find out more.

In the mean time, users with an immediate need for these charts can download and install the USACoE charts manually here:
SEAiq Pilot users can turn off "Automatic Chart Downloader" and then follow the instructions in the Help on the Charts tab to download and install these charts.  SEAiq USA/Free users can download SEAiq Open and load the charts.  SEAiq Open includes a 1 week free evaluation, by which time this will hopefully have been resolved.

Thursday, 27 February 2014

i-Marine Apps Review: "SEAiq has hit the ball out of the park"

We were very pleased to learn of a new review of SEAiq 3.5 on the popular i-Marine Apps review site:

SEAiq 3.5 Update and AIS Sharing - Bazinga!

We encourage you to read the entire review; below is a brief quote:
SEAiq has hit the ball out of the park with the addition of this AIS Sharing feature. The app provides the most comprehensive AIS solution of any iOS or Android charting app on the market. It provides both AIS data over NMEA WiFi and over the Internet if available.

Wednesday, 5 February 2014

SEAiq 3.5.0: IOS 7 Look-and-Feel and AIS Sharing

We are pleased to announce version 3.5.0 of the SEAiq apps.

The most obviously improvement is that this release completes our upgrade to the Apple IOS 7 look and feel.  SEAiq has supported IOS 7 since it arrived, but until the SEAiq apps retained the pre-7 appearance.

Areas with AIS targets in AIS Sharing
This release also marks the introduction of another feature entirely unique to SEAiq called AIS Sharing.  AIS is a standard method for communicating vessels position and other information.

By turning on a single switch (Settings / AIS Sharing), SEAiq will access a global AIS feed to display vessels in many areas around the world.  The feed currently contains 20,000 AIS targets.  You can access this feed whenever you have a WiFi or cellular connection to the internet.

When you zoom out, you will see lightly shared areas marking parts of the world covered by the feeds.  When you zoom in the AIS targets in the area you are viewing will be shown.  As you pan/zoom, the AIS targets will be updated to cover the new areas being displayed.
Zoom in to see vessels
You do not need to have an AIS receiver or transponder to use AIS Sharing.  However, if you do have AIS hardware on your vessel, you can still use it while accessing the feed.  Data from your AIS hardware will always be preferred over the data from AIS Sharing, so AIS Sharing is only adding to what you could see previously.  In addition AIS Sharing will contribute data received via VHF broadcast on your AIS hardware back to the service so that other mariners can benefit from your data.  You can read more about AIS Sharing in our

We are unaware of any other system that has all the features of AIS Sharing and are excited to announce it.

Sunday, 26 January 2014

HOWTO: Official New Zealand Raster Charts

Land Information New Zealand published freely downloadable versions of its raster charts several months ago.  Some users recently asked about how to install the charts.  We refer you to the Post we made at the time for detailed instructions on how to load the NZ charts into SEAiq Open.


Friday, 3 January 2014

SEAiq Pilot in Use on the St Lawrence Seaway

Captain Hardy, a pilot in the St Lawrence Seaway sent us pictures from a recent pilotage.  He was aboard the SEACOD a 188 metre oil products tanker.  You can see the view from the bridge.  In the distance, you can make out the approaching SICHEM MUMBAI.  Capt Hardy says the temperature was -30C when the picture was taken!!!
View from the bridge of the SEACOD as it makes its way along the St Lawrence Seaway.
Below is a screen shot from SEAiq Pilot taken about the same time as the above picture.  It includes a number of interesting elements that help improve the pilot's situational awareness.

You can see the active route Captain Hardy is following and the two vessels shown with the true-scale position and shape.  The SEACOD and SICHEM MUMBAI are each somewhat to starboard in order to pass port-to-port.

A magenta circle identifies the predicted meeting point of the two vessels.  SEAiq Pilot updates this position constantly based on information from AIS.  This allows the pilots to ensure their vessels pass at an appropriate point on the route.

On the right hand side, the status bar displays important information, that is also being constantly updated in real-time.  You can see the course to the next waypoint, ETA, both text and graphical display of the XTE.  The course for the following waypoint (NLC) is shown so he can alert the bridge team to the change in course as they approach it.

Capt Hardy has also identified a waypoint 33nm ahead on the route ("stn QBC") and a goal time at which he wants to reach it.  SEAiq Pilot monitors the time and distance, and shows (in "SPEED REQUIRED") the minimum speed needed to achieve that schedule.  Since the current speed 15.5kts is above the required speed of 14.7kts, they were on schedule.

Screenshot of SEAiq Pilot at about the same time.
Here is a picture of the SEACOD, obviously taken during a warmer time of the year.