My cross-platform app (built in Base44 for iOS and Android) is feature-complete but not yet bug-free. The backend APIs, database, and the entire front-end flow are already in place; what’s missing is a thorough walkthrough to uncover every hidden glitch and polish the build so it’s truly launch-ready. Here’s what I need from you: • Pull the existing codebase, run it on both iOS and Android, and create a concise bug report covering crashes, layout issues, logic errors, or any performance bottlenecks you encounter. • Fix each issue you uncover, committing clean, well-commented code along the way and verifying that no new regressions appear. • Conduct device and simulator testing (latest iOS / Android OS versions) and confirm that key user journeys are friction-free from install to sign-out. • Hand back a fully functioning build plus release notes summarising the fixes, test results, and any final publishing steps I should follow for App Store and Play rollout. Acceptance criteria: no crashes, no blocking visual or functional defects, and all critical paths (onboarding, login, core feature usage, and logout) operate smoothly on both platforms. If you’re comfortable diving into an existing Base44 project, spotting issues quickly, and delivering a solid, ready-to-ship build, let’s get started.