I have used this app for years regularly. I have used it all over my city (Salem, Or) and have come to firmly believe this app knows when I'm near McDonald's because of their WiFi. The results are that the app stops working, it slows to the point it's not usable and/or the offers, specific to breakfast for example, or the coffee counter simply goes away. Again, this has happened for multiple years at multiple locations. So much so that I have given up using the coffee counter.