I’m ready to turn a clear set of requirements into a polished casino-bankroll companion that runs on iOS, Android, and the web. The core of the project is straightforward: users must be able to log in with a secure email-and-password flow, record every session, and instantly see how each win or loss affects their overall bankroll. A persistent betting history that can be browsed, filtered, and compared over time is equally important. I already know the screens I need—dashboard, session entry, bankroll summary, and history—but I’m relying on you to bring them to life with a clean, intuitive UI and the back-end logic that keeps figures perfectly in sync across all three platforms. Feel free to choose the tech stack you’re most comfortable with (React Native, Flutter, or a modern web framework are all fine by me) as long as performance is solid and the codebase is maintainable. Deliverables • Universal codebase that compiles to: iOS app (TestFlight-ready), Android app (Play-ready APK/AAB), and a responsive web version • Secure email/password authentication with password reset • Core features implemented: win/loss tracking, bankroll management, full betting history • Clean, commented source code in a private repo, plus basic deployment instructions Acceptance criteria • Data remains consistent when the same account is used on multiple devices • Any bankroll update reflects instantly on the dashboard without a manual refresh • History view supports at least basic date filtering and total calculations • Build files install and run without errors on the latest iOS and Android versions and modern browsers If you have previous experience with financial or gaming trackers, let me know—otherwise just show me you can meet the above requirements and we can get started right away.