Mac Pro (Late 2013)
MacOS: 10.14.6
Memory 32GB
Xcode: 10.2.1
iPhone: 6s
iOS: 12.4
iPhone Memory: 16GB
Free System Memory: 1.53GB
Free RAM Memory: 429MB
The Provisioning Profiles and Certificates are all up-to-date.
The Provisioning Profile is managed by Xcode.
I can run an App in the simulator. When the App exits, its icon appears on the home screen.
When I run the same App on the iPhone, it runs OK. When I exit the App there is no
icon on the home screen.
If I go to: Settings -> General -> iPhone Storage, the App name appears with the
amount of storage used by the App.
As a test. I deleted an existing App from the iPhone (its icon was on the home screen). When I reinstalled the App, it ran but there was no icon on the home screen.