...It runs on any browser and supports a great variety of tile layers (Open Street Map and Google Satellite among others).
As a php+mysql service can be installed on any web server (i.e. your bike-team site!).
It's free, open source, portable and cross-platform.
*** NB ***
- Check the "allow unknown sources" option on your device security settings to setup on Android.
Current version: 0.9 (beta)
Release notes: -> https://sourceforge.net/p/puntogps/blog/
Lets you monitor your GPS-phone. You have full control of your own data. Both client software (for phones) and server software is free open source, so you might set up your own server or use the default one at opengeotracker.org