Prices
Fixed prices, agreed before we start. No hourly rates, no scope creep. Most projects land between $6,000 and $12,000.
Web apps | React and Next.js. A version one your customers can pay for, on infrastructure you own. | from $6,000 | 4 to 8 weeks | Explore |
Mobile apps | React Native. iOS and Android from one codebase, submitted to both stores. | from $8,000 | 5 to 8 weeks | Explore |
Web and mobile, one backend | A web app and a React Native app sharing one database and one admin. | from $12,000 | 6 to 10 weeks | Explore |
Audit and critical fixes | Ranked findings, the critical ones fixed, the rest as a checklist. | $2,000 to $4,000 | 1 week | Explore |
Finish a half-built app | From a stalled prototype to a live, paid product with monitoring. | $5,000 to $6,000 | 2 to 3 weeks | Explore |
Migrations | Lovable Cloud to your own Supabase. Bubble to custom code. Zero downtime. | from $3,500 | 2 to 8 weeks | Explore |
Bubble rescue | Audit, broken workflows and logic fixed, database restructured. | from $2,000 | 1 to 2 weeks | Explore |
Bubble MVP | Complete build with auth, payments, admin and a proper database. | from $5,000 | 3 to 5 weeks | Explore |
Web apps
React and Next.js. A version one your customers can pay for, on infrastructure you own.
from $6,0004 to 8 weeks
Mobile apps
React Native. iOS and Android from one codebase, submitted to both stores.
from $8,0005 to 8 weeks
Web and mobile, one backend
A web app and a React Native app sharing one database and one admin.
from $12,0006 to 10 weeks
Audit and critical fixes
Ranked findings, the critical ones fixed, the rest as a checklist.
$2,000 to $4,0001 week
Finish a half-built app
From a stalled prototype to a live, paid product with monitoring.
$5,000 to $6,0002 to 3 weeks
Migrations
Lovable Cloud to your own Supabase. Bubble to custom code. Zero downtime.
from $3,5002 to 8 weeks
Bubble rescue
Audit, broken workflows and logic fixed, database restructured.
from $2,0001 to 2 weeks
Bubble MVP
Complete build with auth, payments, admin and a proper database.
from $5,0003 to 5 weeks
How payment works
50% to start, 50% at launchOr three milestones on projects over $10,000.
Takeovers: verdict firstNothing is charged until you approve a fixed price for the fix.
Wire, Wise or cardInvoices and contracts come from JetBuild Studio LLC, US registered.
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
Every project gets a written scope and one fixed number before work starts. If the scope changes, the price is re-quoted in writing; nothing is added to an invoice quietly. You will never see a timesheet.
Almost certainly. Send it over and within 48 hours you get a written verdict with a fixed price. Audits with critical fixes run $2,000 to $4,000; finishing a stalled build $5,000 to $6,000.
50% upfront and 50% on completion, or three milestones on projects over $10,000. Wire transfer, Wise or card.
Every build includes four weeks of bug fixes. After that, a monthly retainer or a fixed quote per feature, whichever suits how fast you're moving.

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