GPS app tracing and checking for waypoints visited

[otternase]

Hello

I'm searching for an app

- in which I can set a number of waypoints (or load these into the app by a GPX file) and
- once started the app shall trace my movements, showing a trace of my movements on a map
- and show the set waypoints and trace whether or not I've visited these waypoints (have been within n metres in the vicinity of the set waypoint)
- play a sound whenever I reach a previously unvisited waypoint
- showing non-visited waypoints and visited waypoints in different colours on the map
- and showing the closest non-visited waypoint to my current location
- finally export the trace of my movements as GPX file

Does someone happen to know of such app?

Best regards
Markus