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Enhancement of Cashbook App with Multilingual Support and Offline Sync Functionality

blink22.com

Financial services

Business services

Information technology

Challenges in Scaling and Enhancing Cashbook App

Cashbook needed to improve app functionality, add 14 new language options (including RTL), and implement offline syncing without disrupting existing users or compromising performance. The project required rapid execution under tight deadlines with technical constraints.

About the Client

A free, easy-to-use money manager app trusted by over 1 million small Indian businesses for managing daily transactions, income, expenses, and card transactions.

Objectives for Cashbook App Development

Enhance app functionality to support multilingual interfaces
Implement reliable offline synchronization capabilities
Ensure backward compatibility and uninterrupted service for existing users
Optimize code quality for scalability and maintainability
Meet aggressive development timelines with minimal technical debt

Core Functional Requirements

14-language support including RTL (Right-to-Left) text rendering
Scheduled offline data synchronization module
Unified transaction management dashboard
Cross-platform compatibility (Android/iOS)
Real-time local database updates with server sync

Preferred Technology Stack

Java

Spring Boot

React.js

Android

iOS

Required System Integrations

Payment gateway APIs
Analytics platforms
Cloud database services
Localization management systems

Critical Non-Functional Requirements

High-performance offline-first architecture
Scalable backend for 1M+ users
Code maintainability with minimal dependencies
Cross-platform UI consistency
Data security compliance

Expected Business Impact of Enhanced Cashbook App

Enables Cashbook to scale operations across diverse linguistic regions while maintaining service reliability. The offline-first approach expands accessibility for small businesses with intermittent connectivity, improving user retention and market penetration across India's SME sector.