---
schema_version: "1"
id: 22e00d15975cce7befea5ff627e65214e5b65129d01f83b4968ec95a027ff784
title: App Overview
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/platform/aura-platform/guides/aura/apps/apps-overview.md
canonical_url: https://developer.salesforce.com/docs/platform/aura-platform/guide/apps-overview.html
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content_type: documentation
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  - Lightning Aura Components Developer Guide
  - Platform Developer Content
---

# App Overview

An app is a special top-level component whose markup is in a .app resource.

On a production server, the .app resource is the only addressable unit in a browser URL. Access an app using the URL:

https://_MyDomainName_.lightning.force.com/<namespace>/<appName>.app.

**See Also**  


-   [aura:application](https://developer.salesforce.com/docs/platform/aura-platform/ref/ref-aura-application.md)
-   [Supported HTML Tags](https://developer.salesforce.com/docs/platform/aura-platform/ref/ref-supported-html-tags.md)