Boat Beacon is an internet AIS receiver and transmitter for your iPhone and iPad. It is the only AIS ship tracking app to provide Collision Warnings, share your boat’s position and use real-time AIS data.

Connected to the largest network of AIS shore receivers world-wide covering most major ports, harbours and popular coastal areas.

“An outstanding app, with great potential. Both interesting to use and very user friendly. This could be a life saver and especially of interest to small boat users. Everyone who goes on the water should have this on and use it!” ***** Sun Dream, App Store Review

Boat Beacon is specifically designed for boaters and provides continuous Bearing, Range and Closest Point of Approach (CPA) calculations and alarms in addition to standard AIS information even when in the background.

Boat Beacon does not require any external AIS transponder or receiver equipment.

Key Features
Over-the-horizon collision avoidance (30 miles radius) using continuous CPA calculations - highlights boats that are on a potential collision course and alerts you with an alarm.

Continually transmits and receives position information via the internet and calculates and alarms CPA even when the app is in the background.

Shares your position with Internet AIS Systems and apps and other Boat Beacon users in real time.

Real time Ship Map view with North up and Heading up modes so you can look in the direction of the ships on the map to locate them.

HUD showing own boat's speed, course, heading and position.

Man Overboard tracking, SART Alarm, Anchor watch and Theft alarms.

Live Augmented Reality Camera View with ships, compass and horizon overlaid (IAP required) also now with FLIR ONE Infra-red camera support - see ships and people in the dark through fog.

Free Apple Watch companion app

"AIS Sharing" to other apps like Navionics & iNavX (IAP subscription required)

Boat-to-Boat and Boat to Group Instant Messaging.

Local AIS and GPS via Wifi.

US, UK and IE Marine raster charts (IAP required).

Let Friends and Family see where you are and where you're headed to with our free Boat Watch app or on web-based AIS systems like MarineTraffic which have free web viewers available.

Arm all the crews in a race with Boat Beacon and have real time updates on the race positions on the water and back in the club house.

Keep a watch and in touch with other boats in your flotilla when sailing in a group.

Boat Beacon requires internet access to work. Most popular coastal areas have cellular data access extending 12 or more miles out to sea.

The "AIS Sharing " subscription is monthly ($5.99) or yearly ($16.49), and will 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.

Terms of Use:

Privacy Policy:


Your position can be shared and seen on all our apps without using an MMSI number. To be seen on Global AIS systems like MarineTraffic you will need and MMSI number. In the US you can obtain one by visiting or email us for a free internet MMSI number.

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

Boat Beacon should only be used for basic navigation reference and should not be solely relied upon to determine precise locations, proximity, distance, or direction. You will not be visible to other ships on their VHF AIS systems.

What’s New

Version 4.9.2

AIS Sharing to Navionics update
Fix for Anchor alarm
Disabled dark mode support as maps very hard to read in dark mode.

Ratings and Reviews

4.5 out of 5
74 Ratings

74 Ratings

all my nicknames are used uo ,

Great for any boat

Being a small yacht sailor I worry about collisions in poor visibility
Without an AIS receiver on the boat this app is terrific. Install it and off you go. Not tried it more than 5 miles offshore but when in a 4g area it is very easy to use
I had to buy a portable recharger for the phone as the battery drains but this is no issue for me
If you have a small boat without a specific AIS receiver then give this a go!

sail on silver girl ,

Boat beacon overlay on navionics chart plotter

Great help from the support team at Boat Beacon to get both apps to work together on my iPad. Thank you Steve!

Micharl Powell ,


This is a very good concept, and it's well executed. I leave an older iPhone aboard with a cheap data connection, and get a constant update. The best bit is that it all works on a standard GPS equipped iPhone or iPad, so there are no extras to buy and connect.

Every sailor should have one now that most seem to carry a smart phone, and it works even more splendidly on an iPad.

I had one technical glitch over a weekend and it was solved by some enthusiastic and adept work by the developer, there and then. Only then did we realise that we are living less than fifty miles apart. Glad to know something so useful is being developed here.

The only downside is that some people may not understand the concept, both for AIS, and for this variant. Boaters may be technical, but they aren't exactly the most ardent for the New. Sextants and teak still rule.

But for those of us living in the 21st century this is great software, and, yes, it's pretty robust and effective. Don't hesitate!!


Pocket Mariner Ltd.
88.5 MB

Requires iOS 9.3 and watchOS 2.0 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. Live View Upgrade £7.99
  2. UK & IE Marine Charts £12.99
  3. AIS Share £15.99


  • Family Sharing

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

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