Directory Mobile App

A comprehensive cross-platform mobile application designed to access and manage large contact databases with offline functionality, secure REST API integration, and advanced analytics across iOS, Android, and Windows platforms.

Directory Mobile App

Challenges and Solutions

Overcoming key technical and design hurdles to deliver a superior conversational AI experience.

01. Handling Large Contact Databases

Challenge:

The client’s database contained a vast number of contacts, which needed to be accessed quickly and efficiently on mobile devices without performance degradation.

Solution:

Implemented a secure REST API to handle large-scale database queries efficiently, with optimized endpoints and pagination to fetch contacts in smaller chunks for better performance.

02. Offline Functionality

Challenge:

Users required the ability to access contacts even when there was no internet connectivity, which meant offline data storage and synchronization had to be implemented.

Solution:

Used SQLite on the mobile app to cache contact data locally, allowing users to access contacts offline. Implemented sync logic to update local storage when connectivity is restored.

03. Cross-Platform Compatibility

Challenge:

The app needed to function consistently across iOS, Android, and Windows platforms while maintaining native performance and UX standards.

Solution:

Developed native components for iOS (Objective-C) and Android while ensuring shared logic through REST APIs. Used consistent UI design and testing across all platforms.

Objective

Directory mobile app objective

The client has a large database of contacts, which they use for business purpose. The client wanted an application to easily find, view and use contacts from its database.

The objective was to build an application to access contact database from iOS, Android and Windows desktop with secure connectivity and offline functionality for enhanced user experience.

Our Approach

Secure REST API with Offline Functionality

PlusInfosys used Secure REST API to communicate with the server database. Expert at Plusinfosys suggested having some offline functionality in the app. Objective C was chosen as a programming language and SQLite was used for storing offline data. Analytics too was included in the app for comprehensive usage tracking and performance monitoring.

Directory mobile app development approach

Tech Stack Used

Backend Frameworks
.Net
Application Development
AndroidxCode
Databases & Storage
MSSQL

Result

Mobile application for task management and resource management was developed and published on store successfully. Many organizations started using it and the client received an excellent response. The app successfully provides secure access to contact databases with efficient offline functionality and analytics.

Directory mobile app final result

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