How much does it cost to build an MVP with ZenLoaf?

Scoping takes 3–5 days and starts at $1,500, and the fee comes off the build. The build itself takes 6–12 weeks and starts at $30,000. You get a fixed price after scoping, before any build work begins.

Can you fix an app I built with an AI tool?

Yes. A health check takes 3–5 days and costs $2,500. You get a written report and a straight answer on whether to repair or rebuild, and the fee comes off the fix. Fix sprints take 2 weeks and start at $8,000.

What happens after launch?

Support starts at $3,000 a month: a few hours a week of fixes, small features, and a second opinion before you hire or sign anything technical.

Who will I work with?

Poe Myint Swe, the founder. She was VP of Engineering at 99.co, a Series C property marketplace, where she ran a team of more than 40 engineers across Singapore and Indonesia.

The senior engineer you don't have yet

ZenLoaf is a small software studio in Brooklyn, led by a former VP of Engineering at a Series C startup. We help founders decide what to build, build it to hold up with real users, and fix apps built fast with AI tools.

Book a free call Fix my app

Sample

Health check: a booking app built with an AI tool

Fix before launch: Any signed-in user can download everyone's bookings, names and phone numbers. The database has no access rules. Adding them takes an afternoon.
Fix before launch: Checkout trusts the price the browser sends, so someone could pay $1 for a $90 class. The server should look the price up itself.
Fix before launch: The Stripe secret key is in the page's code, where anyone can copy it. Move it to the server and replace the key today.
Fix soon: Nothing reports errors. The first you'll hear of a crash is from a customer.
Leave alone: Sign-up, booking and the design all hold up. Don't let anyone talk you into rebuilding them.

Verdict: repair it. About two weeks of work.

AI tools write code that works in the demo.

That is fine for showing an idea, but once real people sign up and pay you, someone needs to check how the app handles their logins, their data and their money.

45%

of coding tasks, across 100+ AI models, produced code with a known security flaw.Veracode, July 2025

170 of 1,645

apps built on one popular AI app builder let anyone read their users' data.CVE-2025-48757, May 2025

How we work with you

Every project starts with a free 30-minute call. What happens next depends on whether you're starting from an idea or from an app you've already built.

You have an idea

And no engineer to tell you what to build first.

Scoping

A clickable prototype and a fixed priceWe work out what to build first and what to leave out, and you leave with something you can tap through. The fee comes off the build.

3–5 daysfrom $1,500

Build

The real thing, properlyBuilt and launched for the price agreed at scoping. You own the code.

6–12 weeksfrom $30,000

Book a free call

Then support, if you want us to stay.

You built it with AI

It worked in the demo. Real users found the gaps. That's normal, and fixable.

Health check

A written report and a straight answerWe read the code, test the parts that handle logins, data and money, and tell you whether to repair it or rebuild it. The fee comes off the fix.

3–5 days$2,500

Fix sprint

Make it holdLogins, data access, payments, error tracking and tests on the parts that take money.

2 weeksfrom $8,000

Book a health check What the health check covers

After launch

Someone who knows your code and helps you decide what to build next. A fractional CTO who also ships.

Support

A few hours a week, every weekFixes, small features, and a second opinion before you hire or sign anything technical.

Monthlyfrom $3,000 a month

The studio

One person does the work, from the first call to after launch. You talk to the engineer who writes your code, not an account manager.

Poe Myint Swe

Founder and engineer

Poe started as a mobile engineer at 99.co in Singapore and ended up running engineering there. 99.co is a Series C property marketplace, and her team grew to more than 40 people across Singapore and Indonesia. In between, she worked on an anti-fraud SDK at Shield, and later she took a product of her own from zero to its first version.

She builds with AI coding tools every day and teaches founders to do the same. In the studio now: an education game that teaches people to build with AI agents, and two open-source Claude Code plugins, Co-researcher and Clarity & Grace.

Mocha

Head of hospitality

Calico, five years old. Sits in on every call, and eats her sister's food, which the studio does not endorse.

Questions founders ask

How much does it cost to build an MVP with ZenLoaf?: Scoping takes 3–5 days and starts at $1,500, and the fee comes off the build. The build itself takes 6–12 weeks and starts at $30,000. You get a fixed price after scoping, before any build work begins.
Can you fix an app I built with an AI tool?: Yes. A health check takes 3–5 days and costs $2,500. You get a written report and a straight answer on whether to repair or rebuild, and the fee comes off the fix. Fix sprints take 2 weeks and start at $8,000.
Do I own the code?: Yes. The code is yours.
What happens after launch?: Support starts at $3,000 a month: a few hours a week of fixes, small features, and a second opinion before you hire or sign anything technical.
Who will I work with?: Poe Myint Swe, the founder. She was VP of Engineering at 99.co, a Series C property marketplace, where she ran a team of more than 40 engineers across Singapore and Indonesia.

Bring the idea. We'll bring the tea.

A free 30-minute call with Poe. You'll leave knowing what to do first.

Book a free call