Testing with App Shielding and Secure SDKs is essential for ensuring the security and integrity of mobile applications. Mobile DevSecOps emphasizes collaboration, automation, and continuous monitoring to create a proactive security culture. By incorporating security measures from the beginning and fostering shared responsibility among teams, organizations can accelerate development cycles while reducing vulnerabilities. App shielding enables proactive security measures for production applications and protects against common threats such as reverse engineering, tampering, and runtime attacks. Secure SDKs detect additional components that prevent app launching, including USB debugging, screen recording, and repackaging. Mobile app shielding provides comprehensive security measures to protect sensitive data and maintain app integrity, enhancing user trust and confidence. Testing recommendations include checking the OWASP Foundations Mobile App Top 10 list and using providers like AppDome, Promon Shield SDK, iXGuard, ProGuard, Zimperium, NowSecure, and Sauce Labs, which offer flexible approaches to testing shielded applications on cloud providers. By staying informed and prepared, developers can ensure the highest level of security for their applications while maintaining an efficient and reliable testing process.