// Case study
Adjacent-sector proof, offline-first mobile architecture with sync queues and conflict handling, applicable to low-connectivity learning apps. Not a published EdTech product engagement.
React Native field app with offline sync and conflict resolution
Inspectors in low-connectivity plants needed reliable capture, SQLite queue, background upload, and admin reconciliation API.
- A facilities management company, 180 inspectors across manufacturing sites with patchy 4G, replaced paper checklists with a React Native app. Prior vendor build lost data when uploads failed silently.
- Requirements: offline form capture with photos up to 25MB; digital signatures; supervisor approval; ERP export by end of day; MDM deployment on corporate Android fleet.
- Architecture: Expo prebuild with custom native modules; WatermelonDB for offline storage; background fetch upload queue with exponential backoff; presigned S3 URLs; Node API with idempotency keys on submission IDs.
