Mobile DevSecOps is a transformative approach that integrates Continuous Integration (CI) and Continuous Delivery (CD) practices into the mobile development lifecycle, aiming to automate the building, testing, and deployment of mobile applications while addressing the unique challenges of platform fragmentation and stringent app store requirements. By leveraging automation tools such as Fastlane and platforms like Harness CI, mobile teams can accelerate release cycles without compromising quality, ensuring that apps are stable, secure, and compliant. This methodology addresses the complexities of managing multiple environments, SDK versions, and dependencies, while optimizing resource usage to reduce build times and streamline testing across diverse devices. Mobile DevSecOps also incorporates robust security measures, integrating automated security scans and compliance checks directly into the CI/CD pipeline to mitigate vulnerabilities and adhere to regulatory standards. Ultimately, this approach enables mobile teams to deliver high-quality mobile experiences quickly and efficiently, meeting the growing demands of the mobile-first technology landscape.