OpenPaths (https://openpaths.cc/) is also a good passive location tracking tool. It's not being actively developed anymore and prone to long loading times, but I've been using it for over a year. Their visualization is pretty good and you can export your data in a variety of formats.
Moves (http://moves-app.com) is also good for passive location tracking. Good data export options and some nice mapping integrations with third party services (http://quantifiedself.com/2014/03/map-moves-data/). Disclaimer: Moves is a Facebook entity so caveat emptor