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Rewriting and Enhancing the CardNow Mobile App for Improved User Experience and Maintainability Using Flutter

twinsunsolutions.com

Financial services

Retail

eCommerce

Challenges in Mobile App Development and Maintainability

CardNow's development stalled due to a fragmented React Native codebase inherited from previous developers. The app suffered from performance limitations on low-end devices, brittle architecture, and non-standard design patterns, preventing delivery of a functional product. The client required a maintainable solution that could support long-term development by their internal team.

About the Client

A gift card management service enabling businesses and individuals to distribute and load physical gift cards for flexible gifting and rewards.

Project Goals for Mobile App Revitalization

Deliver a production-ready Flutter app with cross-platform compatibility (Android/iOS)
Implement performant UI components to ensure smooth user experience
Establish maintainable code architecture with clear documentation
Enable seamless transition of app ownership to CardNow's development team

Core Functionalities and Key Features

User authentication and account management
Gift card loading with customizable amounts
Business rewards program integration
Transaction history tracking
Cross-platform UI/UX consistency
Admin dashboard for card inventory management

Technology Stack and Frameworks

Flutter

Android

iOS

External System Integrations

Payment gateway APIs (e.g., Stripe, Braintree)
Business directory APIs for merchant validation
Push notification services (Firebase Cloud Messaging, Apple APNs)
Analytics platforms (Google Analytics, Mixpanel)

Non-Functional Requirements

Optimized performance on low-end Android/iOS devices
Scalable architecture for future feature expansion
Secure transaction processing and data encryption
Compliance with PCI DSS standards for payment handling
Maintainable codebase with standardized design patterns

Expected Business Impact of Flutter App Implementation

Immediate productivity gains for CardNow's development team through clean architecture and documentation. Successful app store deployment enabling core business operations, with measurable improvements in user retention and transaction volume. Long-term cost savings from reduced technical debt and enhanced cross-platform maintainability.