How much does it cost to build a web app with AI?
A working product — accounts, a database, real logic — not a static page.
Our Verdict
Difficulty
hard
Learning time
1–3 days (MVP) · 1–3 weeks (real SaaS)
DIY cost
$25–$80/mo
Hire cost
$500–$3000
Choose DIY if...
- 3 of 4 tools are free
- You want to learn a new skill
- Budget matters more than time
Choose Hire if...
- The learning curve is steep
- You need professional-quality results
- Your time is worth more than the cost
- You have a tight deadline
Do it with AI
$25–$80/mo
1–3 days (MVP) · 1–3 weeks (real SaaS)
AI does the heavy lifting, you finish what matters.
Do it yourself with AI — step by step
Updated 2026-07-06 — generative-media tools move fast, verify current pricing before you commit.
- 1
Write a one-page spec first. Core flow, the 3–5 screens, data model, auth needs — brief quality drives output quality.
- 2
Scaffold the full app from a prompt. In Lovable, Bolt.new, or Replit Agent (e.g. 'task tracker with email login, projects table, CRUD, dashboard; React + Supabase').
Lovable · Free / $25 / $50
- 3
Wire auth + DB + storage. With Supabase; have AI generate SQL migrations + Row-Level-Security rules, then review them.
Supabase · Free / $25 Pro
- 4
Move to a real code editor. Cursor (Claude Opus 4.8 / GPT-5.5 Agent mode) on the same repo for serious logic, refactors, multi-file changes, and tests.
Cursor · Free / $20 (Pro+ $60, Ultra $200)
- 5
Add payments/business logic. Integrate Stripe (checkout + webhooks); keep secrets in env vars, never client code.
- 6
Test and harden. AI writes tests, then you QA real flows and reproduce on the deployed build (dev returns 200 even when SSR throws).
- 7
Deploy and monitor. On Vercel or Replit, add error monitoring (Sentry) and basic rate limiting before going public.
Best AI tools for this
Updated 2026-07-06 — generative-media tools move fast.
Lovable
BEST VALUEChat-to-full-stack MVP (React + Supabase)
Free / $25 / $50
Cursor
BEST QUALITYAI code editor for control + maintainability
Free / $20 (Pro+ $60, Ultra $200)
Replit Agent
Prompt-to-app with built-in hosting/DB
$25 Core / $100 Pro
Supabase
Postgres + auth + storage backend
Free / $25 Pro
✅ AI does this well
Scaffolding, UI, CRUD, boilerplate auth, first-pass SQL, test stubs, deploy config.
🙋 A human should finish / QA
Security (RLS, real sessions — a 200 ≠ a session), payment/webhook correctness, data integrity, performance at scale, non-trivial business logic.
When to just hire someone
When it handles payments, sensitive data, or auth at scale; must be secure and maintainable; needs custom integrations; or AI starts breaking working features on each change.
Find a pro on Fiverr ($500–$3000) →Want exact numbers for your case?
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