CDNs enhance mobile app performance by reducing latency, improving load times, and ensuring a smooth user experience through edge caching, load balancing, and bandwidth optimization. Mobile apps benefit from CDNs due to global user bases, high data use, variable networks, and security needs. Key advantages include faster load times, lower bounce rates, cost efficiency, scalability, and improved security. Implementation involves selecting a CDN provider, integrating with the app, optimizing caching strategies, and monitoring performance. Best practices include using HTTP/2 and HTTP/3, compression, lazy loading, prefetching, and secure configurations. Companies like Netflix, TikTok, and Uber leverage CDNs successfully. Future trends involve edge computing, 5G optimization, and AI-driven CDNs for better performance and personalization.