Face Time's interface is the same regardless of the device.
The other caller's video occupies the full screen and a thumbnail window for first-person video sits in the corner.
Google Chat, Fring, oo Voo, Skype, and Tango each work over 3G and 4G data networks as well as Wi-Fi.
So should Apple fans stick to Face Time exclusively, or should they opt for other apps that open up communication to more users?
Because the i Pad 2 and i Pod touch don't have phone numbers, Face Time works differently on them than on the i Phone 4.
While it's only available to i Pad, i Phone, and Mac users, Apple's Face Time video chat app has an intuitive interface and excellent quality.
However, other players in the video chat market such as Fring, Oovoo, Skype, and Tango can make face-to-face calls to Android and Apple devices, and some can conduct multi-party video calls with four or more people.