FaceTime makes video calls over Wi-Fi from your iPhone, iPad, iPod touch, or Mac to someone else's.
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Pro Already part of your iOS device
FaceTime is already integrated in your iOS device. No need to install or set it up. It can be accessed from contacts on iPhone or as a separate app on all iOS devices.
Pro Easy to use
To make a FaceTime call, click the icon in the contacts.
Con Apple users only
No applications for Windows, Linux or Android are available.