Trackus app will help you to send your position to a friend, so he can follow you on a map.
Basically, you just have to run Trackus, set your name, generate a random code (or use the one you like), and share it to your friend. He will then receive a link with your code so he can follow you on a map.
Thats about it ! Use it as you like. For exemple, when you leave your familly, and dad says "send me a txt message when you will be back home", use Trackus and he will know exactly where you are.
Some folks doing ballooning told me that could help them, espacilly the ground team that needs to pick them up.
Id like to use Trackus with my wife, when shes driving far away by car for her job. Instead of a "When do you come back", I have her position in real time. This is far better. I know when to cook a diner !
Use it as youd like. Data is stored for developpement purpose but after beta version, data will be erased every 48h. We only archive anonymous stats resume of your tracks. This is 100% anonymous. And free !
Be aware that this is made generously by one french developper on his own personal time.
Continued use of GPS running in the background can dramatically decrease battery life.