Apple's free video calling service, FaceTime, is available on every iPad since the 2011 iPad 2, and iPod touch since the 2010 iPod touch 4. Because FaceTime requires an internet connection, on the iPod touch and non-cellular iPads, you need to be connected to Wi-Fi to make a call. On an iPad or iPad mini with cellular, you can FaceTime any time, from anywhere, you just need to keep an eye on your data limit, if any. Unlike the iPhone, FaceTime on the iPad, iPad mini, and iPod touch is a separate app. Tap it, and you're ready to call any other FaceTime user!