iAIS is a simple AIS target plotter and NMEA data instrument designed for use with the DigitalYacht iAIS WiFi receiver. AIS targets are plotted relative to iPhone/iPod/iPad position. Tapping on an AIS target displays details (i.e. speed, course, destination, type, length, etc.). GPS and Wind data can also be viewed on the Instrument panel.

You can also display the AIS targets over your Navionics charts. With a one off In App purchase, iAIS can use all your existing Navionics charts with no additional charges for the charts.

You can share your boat's live position, speed and course and be visible on other free internet based AIS apps and web sites like BoatWatch and MarineTraffic if you have a valid MMSI number for your boat.

In the US you can obtain an MMSI number for your boat by visiting

In the UK visit or email us for an internet only MMSI number.

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

iAIS should only be used for basic navigation reference and should not be solely relied upon to determine precise locations, proximity, distance, or direction.

What’s New

Version 3.3

You can now manually select and download all the Navionics charts for an area, whilst you have a good internet connection. The charts are then stored on your iOS device, so that they can be displayed whilst sailing offshore (and offline) as in the Navionics apps. This is particular useful for Wi-Fi Only iPads, but also for devices with a 3G SIM, to avoid any problems with missing charts when you lose the mobile phone signal.

Ratings and Reviews

2.2 out of 5
10 Ratings

10 Ratings

pjlee1086 ,

Almost useless

Rigged it up for a test, rarely worked for more than five minutes without freezing or crashing. Paid extra to have access to my Navionics Charts, charts either did not load or caused the program to lock up - with such a bad review you would be justified in thinking “ he did not set it up correctly” No it worked for a couple of minutes several times before locking up.
Carried out the same test using SEAIq, worked perfectly but no Chart integration as SEAiq doesn’t load Navionics HD IPad charts- May work for you but don’t pay for Navionics Chart integration or anything else until you are quite sure it doesn’t freeze or lock up repeatedly.

bagaceratops ,

Pretty poor

Rigged this up to a non dy wifi ais and it appeared to work well, such that i bought the navionics plugin.

Now the bad points and this seems to occur on ipad or iphone.

1. The navionics plug in does not work on my iphone, says not supported.
2. As soon as the app looses internet connection then it seems to drop the nmea feed and hence no longer works.

So all in all, ok for coastal use with an internet feed via 4g, but for a channel crossing forget it.

Disapointed and wasted £10.

Fordy651 ,

Cannot connect

Just paid £9.99 for this and I am unable to connect, so not only am I unable to use it on my Navionics but also as a stand alone app!


Digital Yacht Ltd
63.3 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
This app may use your location even when it isn't open, which can decrease battery life.
In-App Purchases
  1. Navionics Charts Upgrade £9.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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