An app which is able to record an track of movement by an easy operation (iPad/iPhone Universal App).
Since the height of the track can be displayed on the map, this is convenient for climbing, trekking, walking, etc.
Since the map displayed is automatically stored, use is also possible in the region where the radio wave doesn't reach.
It is possible to preview (preload) the map along the route (track), before you go to such places.
Places and routes can be retrieved.
You can use reminder of the places.
Tracks (GPX) can be sent and received via iTunes or Mail.
The user map can be freely added by using an image (JPEG, PNG) copied from other apps like the Photos, etc.
Please note: Continued use of GPS running in the background can dramatically decrease battery life.