From JSON to SQLite: Building a Production iOS App in Six Weeks with AI Assistance

This 43-day development journey demonstrates how Claude Code enables solo developers to ship production-grade iOS apps at remarkable speed. The developer's strategic migration from JSON file storage to SQLite with proper indexing directly addresses a critical real-world constraint—unreliable connectivity in outdoor markets—while the offline-first architecture ensures the app functions completely independently. This case study highlights the viability of building sophisticated applications with zero backend infrastructure, highly relevant for field-based and location-dependent use cases.