Mobile Applications

The Challenge

Multiple clients needed their web-based systems extended to mobile devices — field workers accessing data without reliable internet, customers expecting native app experiences, and operations teams needing real-time notifications. Each project shared common challenges: offline data access, synchronization when connectivity returns, push notifications for time-sensitive events, and native device integration (camera, GPS, biometrics).

Our Approach

Rather than building each mobile app from scratch, we developed a cross-platform approach using React Native with TypeScript — sharing up to 85% of code between iOS and Android while maintaining native performance. Each app connects to its existing backend through a shared API layer.

The offline-first architecture uses a local SQLite database that mirrors the server data model. Users can create, read, and update records without connectivity. When the device reconnects, a conflict-resolution engine synchronizes changes bidirectionally — handling cases where the same record was modified on both the device and the server.

Push notifications are managed through Firebase Cloud Messaging with a server-side dispatch layer that routes notifications based on user preferences, device type, and notification priority. Critical alerts (like lab results in the healthcare app) bypass quiet hours; marketing notifications respect user settings.

Key Technical Decisions

React Native over Flutter. Our backend teams are JavaScript/TypeScript-native, and the existing web frontends are React. React Native allows code sharing between web and mobile (shared types, validation logic, API clients) and lets our engineers work across platforms without context-switching languages.

Offline-first with CRDT-inspired sync. For the field worker use case, we implemented a conflict-free synchronization model inspired by CRDTs. Last-write-wins for simple fields, merge for collections, and manual resolution UI for genuine conflicts. This makes offline usage feel seamless rather than limited.

Biometric auth with secure token storage. Mobile apps use device biometrics (Face ID, fingerprint) for re-authentication, with tokens stored in the platform keychain (iOS Keychain, Android Keystore). This balances security with the faster interaction expectations of mobile users.

The Outcome

Our mobile applications maintain an average 4.7-star rating across app stores, with over 10,000 monthly active users across all deployed apps. The offline-first architecture has proven critical for field deployments where connectivity is unreliable. Push notification engagement rates consistently exceed industry benchmarks because of the priority-based routing system. We deliver new mobile apps in an average of 8 weeks and maintain all deployed apps under our partnership model.