I have a location trace over the last year and I am using it for time tracking (how long was I in the office). Also I have a heatmap of all the places I have been that is really nice to look at.
Also it has helped me in cases where bike sharing companies said: where did you leave the bike on 27th of September? We can't find it.
Or the doctor claiming I didn't appear on the previous consultation and I should pay the appointment out of pocket.
One look at the timestamped map and I can recall the situation.
That is really cool. Can I ask where you are storing that data? Is it something you cooked up yourself or a service you are using?
One of my back-of-the-mind ideas is to combine GPS data like this with some kind of basic activity-type id. Like "working", "practicing guitar", "socializing with friends", etc. Then I could get reports on how I spend my time.
I use the owntracks app with a selfwritten http server that dumps it into a postgres. Then I use grafana and leaflet for visualization.
Regarding your activity tracking: I already also track pulse and smart watch movement, but plan on adding more inputs like the travel mode detection on Android (walking, cycling, driving)
That together with my calendar data should give sufficient data for time reports :)
