[AU72]

Last year went to a MacD for breakfast and paid cash.
An hour later got a message on my smartphone asking to rate my experience at MacDs.

[minnesota_bound]

Do you have their app on your cell phone?

What Restaurant Apps Are Tracking on Android Smartphones
https://table.skift.com/2018/12/12/what-restaurants-are-tracking-on-android-smartphone-apps/

Why McDonald’s Is Looking To Track Customer Data
https://www.forbes.com/sites/greatspeculations/2017/04/13/why-mcdonalds-is-looking-to-track-customer-data/#5ac67ac335fb