How One Developer Ships a Real Mobile App Using an Entirely Free Tech Stack

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A developer has built and deployed a fully functional mobile app with real users without incurring any monthly infrastructure costs. The stack combines Expo for mobile builds, Supabase for database and authentication, Render for background jobs, and Vercel for landing page hosting — all on free tiers. Each service comes with limitations, such as Supabase pausing idle projects after seven days and Render services experiencing slow cold starts after 15 minutes of inactivity. The developer works around these constraints using scheduled pings and strategic build timing rather than paid upgrades. The setup demonstrates that, as of 2026, free tiers from major cloud platforms are generous enough to support a production-grade mobile app from launch onward.

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