The project centres on a single-platform Android application that authenticates users with fingerprint or Face ID and exchanges data securely via Firebase, a custom REST API, or a hybrid of the two—whichever proves most robust once the architecture is laid out together. All screens, flows, and assets will be fully branded; the final APK must run offline after the first sync so core features stay available without a connection. I will hand over 100 % of the source code along with a build that has passed functional testing on current Android releases. Key dates are fixed: kick-off on 13 January 2026 with code-complete and hand-off no later than 31 January 2026. Once the milestone is met we can discuss ongoing maintenance or new features, but the initial scope finishes with a deployment-ready build and clear setup instructions for future enhancements.