on1.day

I built a service that ships your web app in 1 day. Here's why it actually works.

A year ago I noticed a pattern across every client project:

80% of every app is the same.

Auth. Payments. Dashboard. Design system.

We were rebuilding it from scratch every time.

Charging months of time for work we'd already done before.

So we stopped doing that.

We pre-built the boring 80%.

The part that repeats across every product.

Auth, payments, dashboards, email, design — done before you place the order.

What's left is just what makes your product unique.

That's hours of work, not weeks.

AI wires it together. Senior engineers review, polish, and ship.

The result: on1.day

$499 flat. Delivered in one working day.

$99 now, $400 after delivery. Refund if it doesn't ship.

What you get:

→ Working web app with your unique logic

→ User dashboard

→ Payments integrated

→ Auth (login, signup, roles)

→ Design that doesn't look like a template

→ Deployed. Live URL. Yours to own.

What customers build with us:

→ Booking platforms for trainers

→ Internal CRMs for agencies

→ Two-sided marketplaces

The most common thing I hear after delivery:

"I expected a prototype. This is a real product."

Is it for everyone? No.

If you need 12 user roles, 3 native apps, and enterprise SSO on day one — go hire an agency.

But if you have an idea and just need something real to show users, investors, or yourself?

$99 to start. Money back if you're not happy.

on1.day

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Happy to answer questions about how the pre-built stack works,

what kinds of ideas fit the model, and what doesn't.