Simple Cross-Platform Reporting App

I need a lightweight mobile application that runs smoothly on both Android and iOS. When the user opens the app, they should land on a clean email-and-password login screen backed by my existing MySQL or MS SQL Server database. After successful authentication, the user is taken straight to a dashboard that visualises data through clear graphs and charts. From there, a single tap should let them view the underlying report in table form and export it to Excel for offline analysis. You are free to build with Flutter, React Native, or any other framework that guarantees a single shared codebase without sacrificing native performance. I will supply database credentials and a sample data set; you handle secure API integration, the UI, and the Excel export routine. Deliverables • Complete Android (APK/AAB) and iOS (IPA/TestFlight) builds • Source code with build instructions • Simple API layer connected to MySQL/MS SQL Server • Excel export functionality fully tested on both platforms I will test by logging in with sample credentials, confirming that the dashboard charts render correctly, and downloading an Excel file that matches the on-screen data. Let me know which framework you prefer and an estimated timeline, and we can get started right away.