[Binger99]

It does seem like an interesting idea. The big problem I have is one of privacy as I would be uncomfortable with submitting my location data (even if anonymized) to an offsite entity.

I would hope that you have an easily accessible "kill" switch to turn off tracking.

Coincidently, I was just considering what would be involved in creating such an app for myself. My curiosity was piqued when I cam across the Super Day app.

https://superday.toggl.com/automatic-productivity-logging/