In the mobile app development landscape, three frameworks - ByteDance's Lynx, Meta's React Native, and Google's Flutter - are vying for developers' attention. Each framework offers a unique approach to building cross-platform apps with high-quality performance, efficient development, and consistent UIs across platforms. Lynx brings fresh ideas with its dual-thread architecture and web-focused approach, appealing to those with strong web development skills, but its nascent ecosystem and limited adoption outside ByteDance pose challenges. React Native and Flutter dominate with their mature tooling and communities, with Flutter gaining momentum for projects requiring consistent UIs across platforms. The best choice for a developer depends on their existing skills, performance requirements, and target platforms.