Video calling Short for the word application. An app is a small software a... from Estimated to be the most valuable brand in the world, Apple ... More that makes it easy to have video or audio-only conversations with other Apple devices. The Video calling app from Apple that makes it easy to have vide... app comes standard on all Apple devices and is free. Your device needs to be connected to the A global system of interconnected mass of cables, computers,... to make or receive calls. FaceTime calls are usually free. Cellular FaceTime calls use cellular There are two common uses of this word. When talking about d... and therefore may cost money.