“FaceTime is an app that supports video and audio calling between Apple devices or Apple to Android phones. It doesn’t replace your regular phone calls but provides an alternative.”– Lifewire
Apple’s FaceTime app works on Wi-Fi, so one major benefit it has over your regular Phone app is that it can make free internet-based calls anywhere you have a Wi-Fi connection. You can use FaceTime from home, a hotel, restaurants, or any Wi-Fi hotspot without the need for quality mobile service. Plus, since Wi-Fi is supported, it works on not only iPhone but also iPod touch, iPad, and Mac. FaceTime also runs on cellular networks, so you can use it away from home, too, via your device’s mobile data plan.