deployment and maintenance phase begins once the app is thoroughly tested and ready for public use. Deploying an app involves submitting it to app stores, such as the Apple App Store or Google Play Store, where it undergoes further review before becoming available for download mobile app development London . Post-deployment, developers must continuously monitor the app’s performance, gather user feedback, and release updates to fix bugs, add new features, and improve overall functionality. Ongoing maintenance ensures that the app remains relevant and competitive in an ever-evolving market, highlighting the dynamic and continuous nature of mobile app development.