Comment by zoltrix303

I had a similar experience once where a vendor demoed their tracking tech for advertising. This was in France (before GDPR) and they had partnered with many apps (Weather apps and such) to access user locations. I don't remember the size of their target but it was a big chunk of the French population. They showed a map of Paris showing the day of a particular user from leaving their home, which route they took, how long they stood in front of which store and how long the spend inside others etc. My boss at the time found the whole thing very exciting...