The primary benefit of cloud-native architecture in applications is its ability to enhance scalability and flexibility. By leveraging microservices, applications can be built as independent components, allowing for easier updates and maintenance. This architecture supports containerization, which enables developers to package applications consistently across various environments, ensuring they run smoothly in the cloud. Moreover, cloud-native apps can automatically scale resources based on demand, optimizing cost efficiency and performance. Additionally, this approach fosters greater agility, allowing teams to innovate faster and respond swiftly to changing market needs.