Sigma Domain

Sigma Domain

Private apps

Private apps, not public websites

Some things are easier to use than to describe — a map, a floor plan, a route. Sigma Domain hosts those as real web apps that only you and the people you invite can open.

Running today

Two of these are in production

Shared maps

Build a map with your team: properties, spaces, photos, notes, votes. Everyone invited sees the same map and each other's changes. Used for commercial real estate search, including drive-time analysis from employee home addresses.

Location-aware audio tours

A tour that knows where you are. Claude writes the story for what you're passing and it's narrated aloud as you drive or walk, with the next segment prepared before you arrive.

A private Sigma app isn't a public page with a login bolted on. The data it reads and writes lives in the database belonging to whoever owns it, and access is granted per person by invitation. Someone who hasn't been invited doesn't get a permission error — there's nothing addressed to them at all. A deal you're evaluating or a site you're scouting doesn't belong on the public web, and shouldn't be indexed or shared by URL.

Not yet

Deploying your own

In development

The hosting layer that runs maps and tours is built and in production. What isn't finished is the path for you to deploy your own app onto it — authoring and publishing a private app is still an internal process, not a self-serve one.

We'd rather say that plainly than imply a button that doesn't exist. If a private app is something you need, tell us what you'd build — it shapes what we finish first.

How your data stays private · Working with other people