Know where has Google tracked you - Location History Visualization App

After the scandal of Cambridge Analytica, I start to wonder: How much have these Internet companies known about me?
There are some methods you can find some of the data they have collected, including Google Takeout and Facebook. Some people already had some surprising finding that Facebook even recorded their call list.
One of the most sensitive data is the location history. Basically they know every place you have been, and even the speed you moved sometimes. So I wrote a small Shiny App to visualize your Google Location History. For myself, although I expected Google may collected some thing interesting as I used to be an Android User, but I don’t expect to be that much! My dorm, my home, even the spot I hanged out with someone!
Wow, you really know me a lot Mr.Google.
If you want to try out and be surprised. Here is the app.
Privacy: We are not going to be another Cambridge Analytica! Your data would be uploaded to RShiny's cache. It will only be used for the purpose of rendering this visualisation. ANY FILE would be permently wiped once you closed the app. You are also welcomed to audit the code at
A Light Data Lab Github Page