It's all interconnected man, you data, your location, browsing habbits etc. It's why there's a need for this project.
Normally that add come from Google. When you have Google maps installed on your smartphone it automatically know where you have been.
It tracked you and saw you were at McDo zo they give you ads
Its really creepy!
It would be great if the app of Datum could block all this and store it in there app, so you have control and could sell .
You are giving everything about you for free. In return, they are making your life easier like google maps etc.
I am not sure datum will any functionality about blocking them. Only you can do stop using their apps and programs. Datum will only make you earn some money for something you are giving for free.
nobody used to use those app will give them away the are way too comfy. imo datum is the best option. they geth the data anyway so earning money with it is just nice