I have this app running on my Lenovo 10" tablet and use it almost exclusively over other choices I have on board:
- older Raymarine chartplotter installed
- handheld Garmin GPSMAP
- Garmin Bluechart on PC
- Paper charts (most quite old)
- Marine area maps
My chartplotter display is inside at the nav station, so not so helpful when negotiating channels - like from Brisbane
to the Gold Coast which I found a bit daunting doing it for the first time recently. With the tablet next to me on the helm
seat it was easy to resolve any uncertainty on markers, and the accuracy was spot on. I like the intuitive touchscreen functions, and the ease of zooming in/out and displaying distances and bearings.
acquisition is fast when under the bimini
, but it takes a few minutes from inside the cabin
. Once acquired, it keeps up fairly well. I assume this sensitivity would be a function of the particular device. There is an excellent free app to test the GPS
and see what satellites are detected and their strengths .. "GPS Status".
There are a few negatives though. Battery consumption
is a bit of an issue as the GPS and display consume a fair bit of power. A constant charging
source would be useful. Mine also goes into standby after a period of inactivity, and then needs to reacquire the satellites when woken. I can adjust the standby timeout period but not disable it.
Lack of sunlight readability, and the fact that it is not robust or waterproof are other negatives. It also lacks in functions (e.g. very basic route
planning, only displays North up).
The downloaded charts can not be identified by name or number so if you want to make space and archive your charts, you would have to delete them all and then re-download just the area you want.
Apart from these shortcomings it gets a big thumbs up from me. So while I would not consider it a primary navigation device or a proper planning tool, at the price
it's is a no brainer if you already have a tablet. Note that you can install the app on more than one tablet (linked to your Google
I haven't had had any freezing or crashes as noted by Jackdale. Maybe it’s a compatibility issue. It won’t run at all on my Toshiba AT1S0 (7").