Apple has three core messaging and communications apps: FaceTime, Messages, and Phone (Figure 1). Each has a different focus and purpose, although there’s some overlap and integration among them.
Figure 1: The core messaging apps across Apple’s operating systems, shown with their modern, flat icons.
Here’s how you can understand the distinctions among the three:
FaceTime: The FaceTime app on an iPhone, iPad, or Mac lets you create video calls with one or more other people as well as audio-only calls. FaceTime on an Apple TV allows video calls, but requires a paired iPhone or iPad; Apple Watch relies on its Phone app ...
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