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JetBuild Studio
Taking new projects this month

The report saw the outside. Now look inside.

from $500

LaunchProof checks what any visitor can see. An internal audit is a developer reading your code, testing your database rules and logins, and measuring how many users your app can take. Written report in days, with a fixed price to fix everything it finds.

  • 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 look inside?

  • You don't know what you don't know

    LaunchProof sees your site the way a visitor does. The riskiest problems live in the code and the database rules, where no outside scan can look.

  • Growth breaks things

    An app that works for 50 users can fall over at 500. Finding out on launch day, or during an ad campaign, is the expensive way.

  • Investors and buyers will ask

    "Has anyone reviewed the code?" is a standard question in diligence and enterprise sales.

Why it usually happens

  • Whether one user can read or change another user's data
  • How the code is structured, and whether a developer can work on it
  • Payments, webhooks and emails end to end
  • Secrets, config and how it's deployed
  • How many users it can handle before it slows down or breaks

Which one it is on your site is the first thing we find out. Send us your report.

Three depths, three prices

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.

Code health check

You want an honest answer: is this code any good, and can a developer work on it?

$500

fixed price

3 days

  • A developer reads your codebase
  • Code quality, structure and maintainability rated
  • Top 10 risks, ranked
  • Fix it, finish it or rebuild it: a clear verdict
  • 30-minute walkthrough call
Most founders start here

Full internal audit

You have users or are about to, and need to know what the outside scan couldn't see.

$1,000

fixed price

5 days

  • Everything in the health check
  • Database rules and logins tested as different users
  • Payments, webhooks and emails checked end to end
  • Secrets, config and deploy reviewed
  • Every finding ranked, with a fixed price to fix it

Audit and scale test

You're about to launch, run ads or raise, and need to know how many users it can take.

$1,200

fixed price

1 week

  • Everything in the full audit
  • Load test on a staging copy
  • How many users it supports today, and what breaks first
  • What it would cost to handle 10x
  • A scaling plan in plain English

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

What you'll have at the end

  • A written report in plain English
  • Every finding ranked by risk, with a fixed price to fix it
  • A clear verdict: fix it, finish it or rebuild it
  • With the scale test: how many users it can take today

Why JetBuild Studio for this

  • A developer, not another scanner

    Someone who has shipped 60+ products reads your code and tests it like a user and like an attacker.

  • An answer you can act on

    Every finding ranked, with a fixed price to fix it. Hand it to any developer, or to us.

  • The number that matters

    The scale test tells you how many users it can take today, what breaks first and what 10x would cost.

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

Read-only access to the repository and the database settings, or a ZIP of the code. For the scale test, a staging copy we can load without touching your live users.

A written report in plain English: every finding ranked by risk, with a fixed price to fix each one, and a walkthrough call. You can hand it to any developer; you're under no obligation to use us.

The scale test runs realistic traffic against a staging copy and measures when response times and errors climb. You get the number, what breaks first, and what it costs to go further.

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