When an app which uses a call directory extension gets installed onto a device, then that extension appears in the Call Blocking & Identification section of the Settings app.
This is how long it takes to appear there:
< 10.3: approx 1 second
10.3 beta 2: approx 10 seconds
10.3 beta 3: approx 20 seconds
10.3 beta 4: approx 30 seconds
How's long is it going to take to appear in beta 5? 40 seconds?
it had better go back down again in the final release, its a serious useability issue it taking this long to appear - it looks to the user there is nothing there if they are promted by the app to enable it.
