This question might look a bit odd: I'm desperately trying to find a sports tracker app that won't share my activities with half of the world.
I know, that in most applications sharing can be switched off completely. Also, there are many apps out there that promise they share information only with my explicit permission.
So, shortly: does such a GPS sports tracker app exist that writes GPS data only and exclusively into my phone's memory?
Of course, I'd happily pay the price, so that app doesn't need to be free.
(Interesting fact: for Blackberry, the CascaRun app does exactly that. It can share, but does not require you to log in or create an account.)