thanks for the request.
You probably use Deliveries for Mac by Junecloud. I'm not related to them and "Deliveries Package Tracker" for Android is a completely separate product. I admit that with them renaming their app from "Delivery status touch" to "Deliveries: a package tracker", thinking that my Android app is connected to them seems even more likely and I'm not too happy about that.
I apologize for the confusion!