I had this installed and also deleted again. I wonder why a simple thing like this puts script in the the theme liquid which can see what customers buy and follow the customers doing right to checkout ?

You people that have this installed you can have a look in your theme liquid file.
I would like the maker of this app to explain why a simple bar like this have to know what people buy in our shop.

If I am mistaken I will of course apologize, but I would like to know the whole script this app installs