Locus Map is a map-making and navigation tool for Garmin devices. It's a great companion for your next outdoor adventure. It can be used as a standalone GPS app or an activity tracker, but it's really designed to work with your Garmin watch. This is an outdoor map app, so it requires a data connection to work properly. 

The app is very easy to use, but there are a few things you should keep in mind. The first thing is that the app doesn't work without a data connection, and it requires an active data connection to work properly. The second thing is that it is designed to be used with a Garmin device.