Case Study: Enabling Offline Data Storage for a Crop Insurance Mobile Application

First published on Feb 27 2025 in Linkedin.

Client Overview

Our client, a leading India-based crop insurance service company, sought to empower its field agents with a robust mobile application. The primary objective was to facilitate seamless data collection and synchronization, even in rural areas with limited or no internet connectivity.

Challenge

The client faced several critical challenges:

✅ Connectivity Issues – Field agents often operate in remote areas with little or no internet access.

✅ Seamless User Experience – The app needed to be intuitive and user-friendly to accommodate a diverse range of users.

✅ Efficient Offline Data Handling – Ensuring accurate data capture, storage, and syncing once connectivity is restored.

✅ Scalability – The system needed to support thousands of agents handling large volumes of data.

✅ Cost Optimization – Reducing infrastructure costs while maintaining performance and security.

Our Solution

We developed a serverless, offline-first mobile application using React Native and AWS services, designed to provide an efficient and scalable solution.

🔹 User-Centric UI/UX: Created an intuitive, engaging interface to simplify navigation and data input.

🔹 Offline-First Architecture: Implemented MMKV storage to enable smooth offline data capture and retrieval.

🔹 Seamless Synchronization: Leveraged AWS AppSync & GraphQL to sync data selectively based on agent requirements.

🔹 GPS Precision: Integrated highly accurate GPS tracking to ensure precise location data for surveys.

🔹 Collaborative Workflows: Implemented document version control, allowing device switching and multi-agent collaboration.

🔹 Cost-Effective AWS Serverless Infrastructure: Reduced infrastructure costs by 50% with AWS Lambda, DynamoDB, and S3.

Results & Impact

📌 Scalability: Over 3,000 agents can use the app simultaneously with uninterrupted performance.

📌 Data Handling: The system is designed to process 1.5 TB of data annually with minimal overhead.

📌 Improved Productivity: Reduced manual paperwork and enhanced efficiency for rural surveyors.

📌 Cost Reduction: Optimized cloud infrastructure, cutting operational costs significantly.

Technology Stack

✅ Frontend: React Native

✅ Backend & Syncing: AWS AppSync, GraphQL, VTL

✅ Authentication: AWS Cognito

✅ Data Storage: DynamoDB, MMKV (for offline storage), Amazon S3

Conclusion

By adopting a serverless, offline-first approach, we helped the client empower their field agents, ensuring seamless data collection, improved efficiency, and cost savings. The mobile app is now a vital tool in streamlining rural crop insurance surveys, providing reliability even in challenging environments.