Web and mobile apps, built to production.
New apps on React, Next.js, React Native or Bubble. Rescues when a build stalls or a developer disappears. Migrations off platforms that don't want to let you go. Fixed prices, and you own everything at the end.
- 60+ projects shipped
- 90% of clients come back
- Fixed price, you own everything
Led by Douglas Maringa. You talk to the developer, not an account manager.
Our clients have raised from Techstars and 500 Startups, closed a Series A, and run marketplaces doing $30k+ a month.
Whether you're starting out or stuck halfway, we've got you.
Starting from scratch
You are a founder with an idea, maybe a deck, and no dev team.
You worry about burning runway on a slow build, a runaway budget, or having to scrap it all when you scale.
You need a first version customers can pay for, at a fixed price, on tech that grows with you.
Stuck halfway
You are 80% of the way there with Lovable, Bolt or Bubble, or a developer who left mid-project.
You worry that it isn't safe to launch, that every fix breaks something else, or that your data is trapped.
You need someone senior to look at it, tell you straight what it needs, and finish it.
Five ways we help founders ship.
Pick the one that sounds like you. Every project is a fixed price, agreed before we start.
Web apps
A first version your customers can pay for: React and Next.js on a database you own, with auth, Stripe, an admin dashboard and the parts an AI builder skips. Security rules, webhooks, error handling, backups.
Typical timeline: 4 to 8 weeks
Web apps
A first version your customers can pay for: React and Next.js on a database you own, with auth, Stripe, an admin dashboard and the parts an AI builder skips. Security rules, webhooks, error handling, backups.
Typical timeline: 4 to 8 weeks
Trusted by 60+ founders worldwide
Hear it from the people who shipped with JetBuild.
Real products, live right now.
Built for founders who went on to raise, sell and scale.
TicketRev
Techstars, 500 StartupsEvent ticket marketplace
A reverse marketplace for event ticket bidding. Users place offers, sellers accept in real time.
React, React Native, Bubble, Supabase
8 weeks, 2 developers
GlampingHub
$30k+ a monthTwo-sided marketplace, rescued
A full Airbnb-style marketplace for glamping sites, cabins, and eco-lodges. Complete with host dashboards, booking system, and Stripe payouts.
React, React Native, Bubble, Supabase
6 weeks, 2 developers
Huntr
5,000+ usersAI-powered SaaS, rescued
Job search platform with AI resume tailoring, application tracking, and smart keyword matching. OpenAI does the tailoring; the pipeline does the rest.
React, React Native, Bubble, Supabase
8 weeks, 2 developers
Cuure
Series AQuiz-to-subscription platform
Personalized vitamin subscription service. Take a quiz, get a custom blend, subscribe in 60 seconds.
React, React Native, Bubble, Supabase
8 weeks, 2 developers
MondoFit
40% trial to paidSubscription fitness app, rescued
Mobile-first fitness platform with workout programs, progress tracking, and Stripe subscriptions. Rescued from a broken state.
React, React Native, Bubble, Supabase
3 weeks, 1 developer
Workello
Hundreds of teamsHiring assessment platform, rescued
Automated candidate assessments that filter applicants before they hit your inbox. Full hiring pipeline, from application to shortlist.
React, React Native, Bubble, Supabase
5 weeks, 2 developers
The same work, with the numbers
- 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
- What it is
- Fitness subscriptions
- On arrival
- Founder-built, hit a wall
- What we did
- Rebuilt workflows and Stripe subscriptions
- Time
- 3 weeks
- Now
- Live, 40% of trials convert to paid
- What it is
- Ticket marketplace
- On arrival
- New build
- What we did
- Reverse-bid marketplace with real-time offers
- Time
- 8 weeks
- Now
- Funded by Techstars, 500 Startups, Minnesota Twins
- What it is
- Two-sided marketplace
- On arrival
- Half-built, stuck for months
- What we did
- Host dashboards, booking, Stripe Connect payouts
- Time
- 6 weeks
- Now
- $30k+ a month in transactions
- What it is
- AI job platform
- On arrival
- Broken prototype, developer gone
- What we did
- OpenAI resume tailoring, application tracking
- Time
- 8 weeks
- Now
- 5,000+ users in three months
- What it is
- Vitamin subscriptions
- On arrival
- New build
- What we did
- Quiz-to-subscription flow with Stripe
- Time
- 8 weeks
- Now
- Series A within 18 months
- What it is
- Hiring assessments
- On arrival
- Broken scoring and pipelines
- What we did
- Automated candidate assessment pipeline
- Time
- 5 weeks
- Now
- Used by hundreds of hiring teams
Straight talk, shipped on time, no surprises.
Fixed what our previous developer couldn't finish.
“We came to JetBuild with an app that had been stuck in development for months. They stepped in, cleaned up the database, fixed the workflows, and got us live. Straightforward communication the whole way through.”
Christopher Clemmons, National Dental Service
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
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
1 hruncut
3:56:28uncut
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
From first call to launch
- 1
A 20-minute call
You describe the product or the problem. We ask the questions that change the price.
- 2
Scope and a fixed price
Within two days you get a written scope, a number and a start date.
- 3
Build in the open
A staging link every week. You click through the real thing, not a deck.
- 4
Launch and handover
Live, monitored, and everything in your name. Four weeks of fixes included.
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
Yes, and that is most of the inbox now. Send the repo or a login and within 48 hours you get a written verdict: fix it, finish it, or rebuild it, with a fixed price for each. You keep full ownership of the code either way.
Yes. Fifty-plus Bubble apps rescued so far: slow pages, workflows firing twice, missing privacy rules, half-finished builds. Rescues take one to two weeks, and when Bubble itself is the limit we move you to React and Supabase without losing a user.
Completely. The repository, database, hosting and app-store accounts are in your name from day one, with documentation any developer can pick up.
Fixed price, agreed in writing. Half to start and half at launch, or three milestones on larger projects. Wire, Wise or card.
JetBuild Studio LLC is US-registered and works with founders in the US, UK, Europe and Australia. Calls and weekly demos land in US mornings and the European day.
Bubble when you are validating and speed matters more than scale. React and Next.js when you are charging customers, raising money, or need mobile. We build on both, so the recommendation isn't a sales pitch.
Four weeks of bug fixes are included with every build. After that, a monthly retainer or a fixed quote for new features.
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 callNo pressure, no jargon, just a plan and a price.
Douglas Maringa, JetBuild Studio