In-app video calling is a feature that connects users via one-to-one or group video calls inside an app without the need to switch to third-party video chat apps. When users have the option to meet face-to-face in just a few clicks, it significantly increases their experiences and improves engagement.

Plus, the highlight of in-app video chat is that it operates via an internet connection rather than using the complex traditional phone lines. The feature makes use of VoIP (Voice over Internet Protocol) to exchange video data between the caller and the callee.