This is an android application based on Cordova framework.
The GUI is animated by jQuery Mobile.
Tracking is effective and stores tracks in GPX files.
The GPX format is based on:
http://www.topografix.com/GPX/1/1/
No visualization tools are embedded in the app.
External app like GPX viewer or online tools like VisuGPX can be used.
Development of the app is on hold because of the availability of other open source offline tracking tools.
A very good one is called OsmAnd.
Its repo is available here: https://github.com/osmandapp
It provides a plugin that has a very accurate tracking engine and that has advanced visualization tools. This plugin takes also benefit of offline OSM maps.