·9 min read
What a React Native App Costs: Teardown of One We Shipped
A line-item cost teardown of FieldDojo — 57 code-cited calculators, an offline-first SQLite stack, two store submissions — instead of another $15k–$250k range table.
Read more →Insights on building mobile and web applications from the Notchip team.
A line-item cost teardown of FieldDojo — 57 code-cited calculators, an offline-first SQLite stack, two store submissions — instead of another $15k–$250k range table.
Read more →Five checks — store listings, commit history, the explanation test, arithmetic, and meeting the builders — that expose a faked portfolio in about fifteen minutes. Run every one of them on us.
Read more →How milestone-based pricing actually works — deliverables, acceptance criteria, who absorbs overruns — and the two places the model genuinely costs us.
Read more →A production decision record — why FieldDojo runs on op-sqlite + Drizzle with the database as source of truth, how migrations run unattended on phones we can't touch, and the storage choice that didn't survive.
Read more →How we built expo-panoramic-stitcher — wrapping OpenCV's stitching pipeline in an Expo module with one typed API across iOS and Android, no vendored binaries.
Read more →How we built GST invoice generation in a React Native app — CGST/SGST/IGST logic, offline PDF export with expo-print, sequential numbering, and paise-level precision.
Read more →How we built FieldDojo — 57 code-cited calculators for electrical, HVAC, plumbing, and construction — with React Native, Expo, and an offline-first SQLite stack.
Read more →What an MVP should cost, a week-by-week build timeline, the scoping method that keeps you inside budget, and the mistakes that kill most startup MVPs before launch.
Read more →React Native vs native iOS/Android vs Flutter — codebase costs, performance reality, hiring, and OTA updates, with evidence from three shipped React Native apps.
Read more →How to add AI to a mobile or web app: choosing between API models, on-device inference, and fine-tuning — plus the architecture and UX patterns that make it work.
Read more →Milestone pricing vs time-and-materials, senior engineers vs junior handoffs, real code ownership vs lock-in — how Notchip compares to a typical software agency.
Read more →