React Native is an extension of ReactJS that allows developers to build mobile applications using the same fundamental principles as React. It enables the development of cross-platform apps with a single codebase, which significantly reduces development time and costs. A ReactJS development company with expertise in React Native can help you build high-quality mobile applications that perform seamlessly on both iOS and Android devices. By leveraging the React ecosystem, a ReactJS development company can create apps that share code across platforms while still offering native performance and functionality, giving businesses a competitive edge in the mobile market.