Video calling apps are software applications that allow users to make real-time video calls over the internet. These apps enable people to see and hear each other while communicating, making conversations more personal and engaging. Popular examples include Zoom, Skype, and FaceTime, which can be used on various devices like smartphones, tablets, and computers. These apps often include additional features such as screen sharing, chat functions, and the ability to record calls. They are widely used for personal communication, remote work, and online education, helping to connect individuals and groups regardless of their physical location.