To build an app like Holla, a video chatting platform, start by defining your target audience and key features, such as real-time video calling, user matching, and chat functionality. Choose a suitable tech stack, using WebRTC for video streaming and React Native for cross-platform support. Implement user profiles, a swipe feature for matching, and a reporting system for safety. Focus on creating an intuitive UI/UX design to enhance user engagement. Ensure high-quality video and audio performance. For expert assistance and a streamlined development process, partner with Dev Technosys to bring your video chatting app to life efficiently.