# Web apps

> How a Geenius MVP web app works: a site plus a spec of kits and entities, members who are the app's own people, starting points and validation.

Source: https://mvp.geenius.io/docs/web-apps/

A web app is a site plus a **spec**: the kits it has, the member area's interior, the members and the custom entities it keeps.

## Start from a preset

22 web-app starting points, such as a member portal, salon, studio, repair shop, trades business, clinic portal, tax advisor, agency and estate agent. Read the cautions of a preset before you use it.

## The spec

`spec_template` gives you a spec to start from, `spec_validate` checks one without saving it and names the JSON path of every problem, and `spec_write` saves it whole or as a patch.

## Interior

Choose the member area's look, design, accent and layouts.

## Region

The deployment runs in the United States. Use law, health and tax starting points with fictional data only until an EU region exists.