By having an estimated one billion active device users, Apple has a self-sufficient level of ecosystem strength to thrive despite slowing user growth (Neil Cybart/Above Avalon)

Neil Cybart / Above Avalon:
By having an estimated one billion active device users, Apple has a self-sufficient level of ecosystem strength to thrive despite slowing user growth  —  Apple's ecosystem is massive.  Approximately a billion people are using more than 1.4 billion Apple devices.

from Techmeme http://bit.ly/2Wf1Djo