The assignment is to build a production-ready mobile app for both iOS and Android that scans event QR codes, authenticates users with their credentials, and retrieves attendee information from my REST API over a secure connection (HTTPS with token-based headers). Scope • Native or high-performance cross-platform framework of your choice (Swift / Kotlin / Flutter / React Native are all acceptable). • Camera integration that recognises standard QR codes quickly and reliably. • After each scan, the code’s payload is sent to my backend; the app then presents the returned attendee profile in an attractive, on-brand UI. • Credential-based login with form validation and persistent session handling. • All API calls must be encrypted and follow the JSON schemas provided. • Clean UX/UI design included: login, onboarding, scan flow, qr-scan or manual guest selection, success & error states. Deliverables 1. Source code for iOS and Android builds. 2. UI assets and style guide (Figma, Sketch or similar). 3. Build & deploy instructions plus a short README outlining architecture decisions. 4. One release-candidate build per platform ready for TestFlight / Play Console. Acceptance Criteria • First scan to attendee screen in ≤2 seconds on mid-range devices. • No unauthorised API access when traffic is intercepted (I will run a proxy test). • All flows pass the test cases in the API documentation. • Stores comply with Apple & Google camera permission guidelines. To be considered, submit a detailed project proposal covering your preferred tech stack, milestone timeline, and how you will meet the performance and security points above. Deliverable are - App installable on devices - Full source code with documentation