Aureum | Digital Banking Flutter App With Next.js Web Script

Aureum is a production-grade Flutter neobank app you can rebrand and ship. The Flutter mobile app is the headline: a complete customer banking experience with biometric app lock, secure token storage, push notifications, and six languages including full right-to-left Arabic. It is backed by a matching Next.js web application that bundles a full customer web app and a role-gated operator back-office in one codebase (PostgreSQL). Every balance is derived from a real double-entry ledger, so there is never an editable “balance” field anywhere.

The Flutter app

• Full customer banking on mobile: accounts and transfers, cards, deposits, loans, KYC, savings goals, bill payments, statements, and notifications: the same feature set as the web app, in a native Flutter 3 client.
• Secure by design: biometric or PIN app lock, auth and session tokens plus card PINs stored in the platform keystore (Keychain on iOS, Keystore on Android) via flutter_secure_storage, never in plain preferences.
• Push notifications through Firebase Cloud Messaging (optional; the app runs on demo data without it).
• Shared design language and localization: the app mirrors the web design and switches across all six languages on the fly, flipping the entire layout to right-to-left for Arabic.
• Clean, buildable source: real Dart source (no default template text), explicit Android compileSdk/targetSdk, and a project README. Point it at your server with one —dart-define and run.

The Next.js web companion

• Customer web app: accounts and transfers (internal, domestic, international SWIFT with disclosed fees), virtual and physical cards (freeze, channel toggles, limits, secure reveal), recurring and fixed deposits (DPS and FDR) with live maturity projection, loans with an amortized EMI schedule, tiered KYC (document plus selfie plus address), savings goals, bill payments, statements (PDF, Excel, CSV), notifications, and a command palette.
• Operator back-office: a role-gated console (super admin, compliance, finance, support, read only) with live queues, a customer directory, KYC review, transfer approvals, loan approval and disbursement, deposit oversight, a ledger explorer, reasoned balanced manual postings (no “set a balance” button), an immutable audit log, and a full settings panel.
• A real double-entry ledger: money is stored as integer minor units and every balance is the sum of its postings. The whole book reconciles to zero per currency.