The app caused my Galaxy Note 5 to crash completely (requiring me to hold the power button to reset) multiple times when trying to pan the topo map around

In a nutshell here is what I found (and it goes for both devices):- extremely difficult to pair with a phone (i use iPhone)- regularly drops bluetooth connection with phone (once connection is made)- even at modest distances (0.5 miles and under), in light foliage, with line-of-sight conditions, the devices failed (90% of the time) to connect and pass information- the app interface is problematic and not intuitive (requires a lot of time to figure out and is not user friendly)- the limited downloadable maps (an add on with the Plus subscription) are often dropped and require a re-download- according to the user manual, the transceivers are very sensitive to external electromagnetic fields (such as what the human body might generate) and should not be placed in close proximity to the body (ie. in a pocket)

In addition, the maps were incredibly useful and surprisingly accurate.

The excellent offline maps even have the ski resort runs mapped out in some places!

To bad you can only get detailed outdoor maps when you subscribe to the plus subscription.

The standard maps are very limited (only road maps)

Like the maps of the other countries.

This is such a cool product -- love the city maps for travel and tourism

The maps are great, too.

it provides offline pretty good maps and shows everyone's last updated location relative to each other on the map- messages sent are confirmed when received within a few seconds, so you know if it the message got through or not- with shared GPS locations without Cellular coverage, it enables smartphones location sharing similar to Garmin Rhino Radios costing 3-4 times as much

The app's offline map was great for navigating town as well as for creating pins and sharing them when any of us wanted to mark a point of interest

I've used mine throughout trips to SE Asia, the Australian outback, New Zealand, as well as during hiking trips in the US