B&G: Companion App for Sailors

• Free to download
• In-app purchases

Last verified 31 Jul 2026

4.0 368 ratings · App Store

1. 5/5Great app with minor room for improvement

   The app has come a long way and is now sufficient for my needs. I moved from Navionics. That said, a couple of thoughts: 1. Can you please consider allowing Split screen on the iPad? I would like to combine viewing with windy or predict wind. 2. Please check the setting for changing the anchor alarm. Once in the menu I cannot go back to the menu on both iPhone 15 and iPad 12.9. only restart resolves, but no saving possible. 3. on iPad 12.9 when downloading a defined map area the result differs continuously from the area chosen. The area delivered trends to the south west. One final note: B&g and c-map differ only by hardware add-on opt in for B&G. I would consolidate the apps and offer all features of hardware add on holistically. Apart from that great work. Thank you.

   johellwig · 31 Jul 2026

2. 1/5So far, so bad

   My boat is equipped with B&G instruments. I was looking to spend several thousand dollars updating the chartplotter based on the promise of this app, and its capability to plan routes and then sync with their latest instruments. However, so far the app seems to be far from ready for prime time, and may even be risky to rely on for navigation. It is very unintuitive, buggy, and crashes regularly with a white screen appearing in some instances. Even basic functions such as route planning do not appear to work. I already use iNavX and TZiBoat. Both of these apps are streets ahead of B&G’s being much easier to use, and bug free and with many more features built in. Furthermore, since 23rd June 2023, the B&G app refuses to launch and a splash screen says B&G is experiencing a “service outage”. Subscriptions have been extended based on this. Brunswick Corp that owns B&G has been the subject of a significant “IT Security Incident” that affected a number of their businesses and made headline news. Maybe they are related? Either way, I would advise not wasting your money yet on this app which is not even at Beta test level.

   BritDude · 31 Jul 2026

3. 5/5Best navigation app

   I just purchased a new boat that came with B&G chart plotter. I was told the this app would allow me to register all the equipment, which it did. I now find that it has much more. I was able to create routes by just selecting a start point and end point, and app figures all the waypoints between them. But the best part was the when I select the chart plotter from the app I can sync the app to the chart plotter and all the routes are transferred and stored in the chart plotter no need to copy anything.

   cincy2018 · 31 Jul 2026

4. 2/5Unreliable tries to access mobile data

   Have B&G instruments on my sailboat and just purchased the new Zeus S. The Zeus S is mounted at the nav station and I thought I could use this app in the cockpit. I want to like this app, it looks great and works well - when it works. But it loses positioning and the only way to know is see 0 for speed, somewhat dicey in a tight spot. It continually attempts to use wifi or cellular if enabled and most of my sailing is in remote locations with very slow internet access. The app hangs unresponsive as it seeks internet data. I can somewhat mitigate this by putting my phone in airplane mode but it leaves me without text messaging. A setting for the user to set the app to only work offline would be a helpful addition. Overall not a reliable app for real time navigation. The Zeus S however is rock solid.

   Bevuil · 31 Jul 2026

5. 1/5Big disappointment

   I really wanted this to work. Problems: - doesn’t synch from Zeus S to iPhone. After waiting 2 hrs to reach tech support, I was told that it will synch if both phone and Zeus are logged into a separate Wi-Fi system. Ug. - measure distance feature would be great but it is wildly inaccurate. It says the distance from San Francisco to Seattle is 3800 feet. -incredibly, the Create Route feature doesn’t let you creat a route from your waypoints. Instead you just pick start and destination points and it creates a computer generated route. Useless. - the weather forecast feature is sooo slow and doesn’t indicate which weather model or source data is used. Since you evidently have to be on a Wi-Fi network to use it, you’ have much better options on the internet.

   Deskofjk · 31 Jul 2026

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