- A track is a collection of points of a path you actually made in real life. Track points contain GPS coordinates, time when it is recorder, the elevation of the point, ...
- A route is a collection of points of a path you didn't made in real lif, but plan to. Route points don't contain elevation and time. Routes usually contain less points than tracks but may be helpful when you organize your future outdoor activities.
Now, Trackprofiler has a new option to create, edit and organize routes. You can see here a quick screencast on how it works: