Product studio in Seoul · 350+ projects shipped
Unlimited development.
$5,000 a month.
Send a feature request. Most go live on your site within 24 hours. Cheaper than an agency or a hire. Steadier than vibe coding it yourself.
We build your first version before you pay anything. Subscribe only if you keep it.
Sound familiar?
You paid. You still don't have a working product.
The AI app builder
- The demo looked great in ten minutes.
- Then the same bug came back after every prompt.
- Each fix broke something else, and burned more credits.
- Payments, logins, and real data never quite worked.
The agency or freelancer
- You paid tens of thousands upfront.
- Months went by. The launch date kept moving.
- Every change came with a new invoice.
- What you got doesn't work, and no one wants to touch the code.
One flat monthly price. Engineers who own the result. Changes live the next day.
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Engineers fix bugs, not prompts
Senior engineers use AI to move fast, and read the code themselves.
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Live within 24 hours
Send a request before you log off. It's live when you wake up.
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No credits, no invoices
$5,000 a month covers every request and every bug fix.
How it works
See it working before you subscribe.
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1
Tell us the idea
A few sentences is enough. Links and screenshots help.
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2
We build version one
Your app runs on a live server. You haven't paid anything yet.
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3
Keep it, or walk away
Keep it and subscribe at $5,000 a month. Don't, and you owe nothing.
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4
Ask for anything
Send requests one at a time. Most go live within 24 hours.
Why not an agency, a hire, or an AI app builder?
A full product team for less than one developer.
| Agency | Hiring a developer | AI app builder | HeyJames | |
|---|---|---|---|---|
| Cost | Often $15k–50k per project | $10k+ a month, plus months to hire | Credits for every prompt | $5,000 a month, flat |
| When you pay | Deposit upfront | From day one | Before every attempt | After you see version one live |
| A change request | New quote, new invoice | Depends on one person | Fast, until bugs pile up | Included, most live in 24 hours |
| Who fixes bugs | Billed as extra work | Your hire, if they can | You, prompting again | Our engineers, included |
| The code | Yours, at the end | Yours | Hard to take over or scale | Yours, in your GitHub |
| Commitment | Contract | Employment | Monthly plan | Pause or cancel anytime |
Pricing
$5,000 a month. Unlimited requests.
Version one is on us until you decide. The subscription starts only if you keep it.
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Unlimited requests
Add to the queue anytime. We work on one at a time, in your order.
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Most live within 24 hours
Bigger features are split into daily steps, so you see progress every day.
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Bug fixes included
No extra invoice for anything that breaks.
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Pause or cancel anytime
No contract. Stop whenever you want.
What you get
A working product you own.
Full source code
In your own GitHub from the first commit. Keep it if you cancel.
Runs on your cloud
We deploy to your own server and accounts.
A real stack
Ruby on Rails, a real database, payments, admin. Not a locked platform.
Questions
Before you ask
- What counts as one request?
- One thing you want changed or added: a new page, a payment flow, a report, a fix. If it's big, we split it into steps and ship one each day.
- Is it really live in 24 hours?
- Most requests, yes. Large features take a few days, but you see a working piece every day.
- Is "unlimited" really unlimited?
- There's no cap on how many requests you send. We work on one at a time, so the queue moves in your order.
- What if I don't like version one?
- You pay nothing and we part ways. No deposit, no invoice.
- What happens when I cancel?
- You keep everything: the code, the server, the data. Your GitHub, your accounts.
- Who does the work?
- Senior engineers in Seoul who have shipped 350+ products, working with AI tools.
What would you build?
James will reply within one business day. No commitment.