Built Correct Build Room

Your business app, built with you.

Say what you want built. Your first version is usually live in about a minute at its own address, and senior engineers review and join every Build Room.

Open a Build Room Sign in

Free to start. No card needed.

The Build Room walkthrough: v1, live at its own address, beside a sample business's invoices app at millrace-invoices.builtcorrect.com — A sample business’s first version, live at its own address: Millrace Supply’s invoices, from the Build Room walkthrough.

1 minuteto your first version, usually

Every roomjoined by senior engineers

Freeto start, no card needed

Drop in an idea or what you already have. We’ll build it, host it, and keep shaping it with you.

How it works

Say what you want built. Type it in plain words, and drop in what you already have: a spreadsheet, a photo, a file.
See your first version, live. Usually in about a minute, at its own address, yours to build on, share and sell.
Keep shaping it with us. Ask for the next change right in the chat. Senior engineers review and join every Build Room.

In your Build Room

A Build Room with the idea in it: re-make QuickBooks but cheaper, knowing which 12 customers are tax exempt — **Say it in your own words.** Drop in an idea or what you already have, and we build it here.

A customer list dropped into the Build Room's chat as a CSV file, with the note that goes with it — **Any data, any format,** right here in the chat.

The invoices app's second version: each customer taxed or exempt by where they ordered from — **Your rules, not theirs.** The second version taxes each order the way your list says.

A senior engineer in the Build Room offering the next step and already building it on a copy of the site — **Senior engineers join every Build Room.** The next step goes on a test copy first, and live on your OK.

Your Build Room is free to start.

Say what you want built, and see your first version live in about a minute. No card needed.

Open a Build Room Sign in