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JetBuild Studio
Taking new projects this month

A React and Next.js web app your customers can pay for.

You've seen what happens after the demo: the login that breaks on a real domain, the subscription that never cancels, the database anyone can read. Version one from JetBuild ships with the boring parts done, auth, Stripe, an admin dashboard, security rules, backups and monitoring, on infrastructure you own. Fixed price. A staging link every week. A handover any developer can pick up.

  • 60+ apps shipped
  • fixed price agreed before we start
  • live in 4 to 8 weeks
Workello, hiring assessment platform
Recent work

Web apps we've shipped.

Marketplaces, SaaS, AI tools and subscription products, built with the same discipline every time: React, Next.js and Supabase, with the payments and security done properly.

And the migration a platform said was impossible

0
tables
0
policies
0k
files
0
downtime
  • School operations platform

    What it is
    Migration
    On arrival
    Locked in on Lovable Cloud, 5,000 students
    What we did
    Moved to the client's own Supabase: schema, policies, files, every login
    Time
    Now
    Live, zero downtime, every login kept
Proof, on camera

Watch a web app get built, start to checkout.

Two full Next.js builds from the Coding With Douglas channel, with Stripe wired and a real checkout at the end. This is the stack and the pace your version one gets.

3:56:28uncut
Next.js 14 e-commerce store with Sanity, Stripe and Zustand10k+ views
E-commerce store with Next.js 14, Sanity and StripeFull build, start to checkout

What we build with: React, Next.js, TypeScript, Supabase, Postgres, Stripe, Vercel.

Sound familiar?

  • You were quoted $30k and three months for a first versionversion one
  • Your prototype works in preview and breaks the moment real users show upFinish it
  • Investors want something they can click, not a Figma fileversion one
  • Your last developer left a codebase nobody can readFinish it
  • You pay monthly for a platform you don't own and can't leaveMigrate
  • You need web and mobile without paying for two separate buildsWeb and mobile

From first call to launch

  1. 1

    A 20-minute call

    You describe the product. We ask the questions that change the price, and tell you straight if you don't need us.

  2. 2

    Scope and a fixed price

    Within two days: a written scope, a database plan, a number and a start date. Nothing is built until you sign off.

  3. 3

    Build in the open

    A staging link every week from week one. You click through the real thing, not a deck.

  4. 4

    Launch and handover

    Domain, payments and monitoring live. Repo and accounts in your name. Four weeks of fixes included.

What it costs

Every project is a fixed price agreed in writing before we start, with half up front and half at launch. Not sure which fits? The call is free and you leave with a recommendation and a number.

Finish what you have

A prototype from Lovable, Bolt or a developer who left, taken to a live, paid product.

$5,000

starting from

2 to 3 weeks

  • Written verdict in 48 hours
  • Keep what works, rebuild what doesn't
  • Security rules, Stripe and deploy hardened
  • Monitoring and error tracking
  • Four weeks of fixes after launch
Most founders start here

Web app, version one

A first release your customers can pay for.

$6,000

starting from

4 to 8 weeks

  • Written scope you sign off on
  • Next.js on Supabase or Postgres, TypeScript
  • Sign-up, login, roles and permissions
  • Stripe subscriptions with webhooks wired
  • Admin dashboard
  • Row-level security, backups, monitoring
  • Deployed on your accounts
  • Four weeks of fixes after launch

Web and mobile

A web app and a React Native app on one shared backend.

$12,000

starting from

6 to 10 weeks

  • Everything in version one
  • React Native app, iOS and Android
  • One database, one admin
  • Push notifications
  • App Store and Play Store submission
  • Eight weeks of fixes after launch

Every price includes a fixed quote, weekly staging links, a documented handover and full ownership.

What founders say after

Straight talk, shipped on time, no surprises.

  • Fast, reliable, and actually understands Bubble at a deep level.

    JetBuild delivered exactly what we scoped, on time, with zero hand-holding needed. They understand Bubble at a production level, not just getting things to work, but building them properly.

    Brian Luerssen, Founder at DraftBit

  • Built our entire booking system and payment flow from scratch.

    We needed a booking platform with Stripe payouts and role-based dashboards. JetBuild scoped it clearly, built it fast, and it worked on day one. No back and forth, no surprises.

    Marcus Webb, Co-Founder at GreenRoute Logistics

Founder
John S.Startup founder
Consultant
Dave M.Marketing consultant
Founder
Christopher G.Startup founder

How every project runs

Fixed price before we start

You know the full number upfront. Never hourly surprises.

Weekly staging links

You click through the real build yourself. No curated demos.

Documented handover

Any future developer can pick your project up.

You own everything

Code, data, accounts and infrastructure are yours at the end.

Questions founders ask first

The first release a customer can pay for, not a demo. It has the parts an AI builder skips: security rules, webhook handling, error states, backups and monitoring. Most version ones cover one core workflow done properly, plus payments and admin.

Four to eight weeks for a web app, depending on how many user roles and integrations there are. You know the timeline before you pay anything.

From $6,000. Most web apps land between $6,000 and $12,000. Two-sided marketplaces, AI-heavy products and anything with payouts sit at the top of that range. Either way you get one fixed number before we start.

Yes. A working prototype, even a rough one, is the best spec there is. Often the right move is to keep what works and rebuild the parts that don't, which is cheaper than starting over.

Next.js, TypeScript, Supabase or Postgres, Stripe, Vercel. Boring on purpose: it's what the largest pool of developers can maintain after us, and what we've shipped dozens of times.

Yes. Version ones are built so a React Native app can share the same backend. If mobile is coming, say so on the call and the data model gets shaped for it now.

Douglas Maringa

Not sure which one you need?

Book a free 20-minute call and I'll tell you straight what your project needs, including if it doesn't need me.

Book a free call

No pressure, no jargon, just a plan and a price.

Douglas Maringa, JetBuild Studio