eTaka — Cross-Platform Mobile Financial Services (MFS) Wallet
Instant P2P transfers, biometric security & financial wellness telemetry.
Click to inspect high-resolution interface
eTaka — Cross-Platform Mobile Financial Services (MFS) Wallet
Banking Reimagined for the Next Billion Users.
eTaka is a mobile-first financial services (MFS) wallet and digital banking ecosystem engineered with Flutter and Dart. Designed to streamline remittances, merchant QR payments, utility bill payments, and micro-savings in emerging economies, it delivers native 60fps performance on both iOS and Android.
The app features hardware-backed biometric authentication (Face ID / Fingerprint), multi-step OTP verification, reactive transaction ledgers with real-time fee calculation, and interactive financial literacy modules that help users visualize spending habits.
The Challenges
Technical constraint & operational bottleneck
High transaction friction and complex UX in mobile remittances.
Traditional mobile banking apps are burdened by bloated codebases, slow loading times, confusing multi-step forms, and frequent transaction timeouts that erode consumer trust. Providing instant, secure financial transactions with zero UI lag across varying device hardware was the core objective.
System Interface Showcase
Live Application Workflows
Click any interface screen below to open the interactive Lightbox and examine full-resolution UI components and data flows.
eTaka — Live Mobile Financial Services Wallet Running on Android Emulator
eTaka — Instant P2P Transfer & Multi-Rail Settlement (Raast / JazzCash)
eTaka — 4-Digit Security PIN & Hardware Biometric Authorization Keypad
eTaka — Sub-second Verified Transaction Receipt with Unique TxID & Zero Loss
eTaka — Financial Telemetry, Outflows & Spending Category Doughnut Breakdown
eTaka — Location-Based Real Merchant Deals & Cashbacks (KFC, Daraz, Careem)
eTaka — Reactive Passbook Ledger with Multi-Category Filter Chips
The Solution
Production-ready architecture & user journey
Single cross-platform Flutter codebase with native responsiveness.
Amethyst architected a modular Flutter application adhering to Clean Architecture principles. It features custom animated OTP input controls, instant QR scanner integration, automated receipt generators, and encrypted offline state caching. Network requests leverage SSL pinning to prevent man-in-the-middle exploits.
Secure Mobile Fintech & Reactive State Architecture
Hardware-level biometric signing coupled with reactive BLoC state streams.
Hardware Enclave & Biometric Gate
Secures authentication keys within device-native hardware keychains with FaceID/TouchID biometric gating.
Reactive BLoC State Management
Decouples business logic into immutable event-driven streams, ensuring zero state synchronization drift.
Instant P2P & QR Settlement Engine
Validates recipient account numbers, calculates dynamic tier-based fees, and executes sub-second fund transfers.
Financial Wellness & Spend Analytics
Interactive charting surfaces categorized monthly spending breakdowns and automated savings milestone trackers.
Screen Archive & Operational Views
Interface Directory (8 Screens)
The Results
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