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JetBuild Studio
Taking new projects this month

Fix what LaunchProof found. One fixed price.

Pick the package for your problem, or send the whole report and we'll price everything together. Every package ends with a clean LaunchProof re-scan as proof.

  • 60+ projects shipped
  • 50+ apps rescued
  • Fixed price before we start
  • You own everything

Our clients have raised from Techstars and 500 Startups, closed a Series A, and run marketplaces doing $30k+ a month.

60+
projects shipped
50+
apps rescued
90%
of clients come back
3 to 6
weeks to launch
From our clients

Founders who handed it over, in their own words.

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

Why not just keep prompting, or hire a freelancer?

Keep prompting the AI toolA freelancerJetBuild Studio
Knows what's wrongGuesses from your descriptionStarts from scratchStarts from your LaunchProof report
PriceCredits, then more creditsHourly, open-endedFixed before we start
Checks its own workNoSometimesClean re-scan as proof
Knows AI-built appsIt built themVaries50+ rescued
You own everythingYesUsuallyAlways
Proof, on camera

Watch us build. Hours of it.

Draftbit, the React Native platform, had Douglas record their official app-build series. The full-stack builds below are exactly how your project gets made.

3 hruncut
Building a mobile app, EP.1: authentication and onboardingDraftbit official series
1 hruncut
Building a mobile app, EP.2: home, details and searchDraftbit official series
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

More on the Coding With Douglas channel

Douglas Maringa, the developer behind JetBuild Studio

One senior developer, not an agency relay.

When you work with JetBuild you talk to the person writing the code. No account managers, no handoffs, no telephone game between you and the build. That's why fixed prices are possible, and why 90% of clients come back.

Douglas Maringa, JetBuild Studio

About DouglasLinkedIn

How it works

  1. 1

    Send your report

    Use the form below. Your LaunchProof report comes with it, so we already know what's wrong.

  2. 2

    Fixed price in 24 hours

    We look at the report and your site and reply with a fixed price and a start date. No call required.

  3. 3

    We fix it

    Read-only access until you approve. You see every change on a staging link before it goes live.

  4. 4

    Re-scan as proof

    We run LaunchProof again and send you the clean result, plus a short record of what changed.

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.

  • 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

  • Rescued our app after our first developer disappeared.

    “Our first developer ghosted us halfway through the build. JetBuild picked up the project, restructured the database, and launched it in under 3 weeks. Should have started with them.”

    Rachel Simmons, Founder at PivotOps

  • 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

“Fixed what our previous developer couldn't finish.”
Christopher Clemmons, National Dental Service

Questions founders ask first

Because the LaunchProof report has already done the diagnosis. We know exactly what to fix, so a job that would normally start with a week of discovery starts on day one.

We tell you before doing anything extra, with a price. The fixed price you agreed never changes without your yes.

Lovable, Bolt, Base44, Replit, v0, Cursor and Claude Code output, Bubble, Supabase and Firebase, plain React and Next.js, and React Native.

Always. Everything stays in your accounts and your repository.

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