As long as the users keep to Wi-Fi or unlimited data plans, there are no costs for the users. It’s worth noting that all Skype to Skype calls are completely free and don’t incur any kind of costs for the users unless they are using the application with a data plan. The same can be said about the audio calls. In fact, its best function has to be the video call, which can support up to 25 people in a single group call. Even if Skype is officially considered an instant messaging application, it’s capable of doing a lot more.
