# Using GitHub Apps

You can purchase and install GitHub Apps from GitHub Marketplace.

## Links

* [About using GitHub Apps](/en/enterprise-server@3.22/apps/using-github-apps/about-using-github-apps)

  Learn about what a GitHub App is and why you would use a GitHub App.

* [/installing-a-github-app-from-github-marketplace-for-your-personal-account](/en/enterprise-server@3.22/installing-a-github-app-from-github-marketplace-for-your-personal-account)

* [/installing-a-github-app-from-github-marketplace-for-your-organizations](/en/enterprise-server@3.22/installing-a-github-app-from-github-marketplace-for-your-organizations)

* [Installing a GitHub App from a third party](/en/enterprise-server@3.22/apps/using-github-apps/installing-a-github-app-from-a-third-party)

  You can install GitHub Apps directly from the app owner to use on your account.

* [Installing your own GitHub App](/en/enterprise-server@3.22/apps/using-github-apps/installing-your-own-github-app)

  You can install a GitHub App that you created on the account that owns the app. If your app is public, the GitHub App can also be installed on other accounts.

* [/installing-a-github-app-on-your-enterprise](/en/enterprise-server@3.22/installing-a-github-app-on-your-enterprise)

* [/requesting-a-github-app-from-your-organization-owner](/en/enterprise-server@3.22/requesting-a-github-app-from-your-organization-owner)

* [Authorizing GitHub Apps](/en/enterprise-server@3.22/apps/using-github-apps/authorizing-github-apps)

  You can authorize a GitHub App to retrieve information about your GitHub account and to make changes on your behalf.

* [Approving updated permissions for a GitHub App](/en/enterprise-server@3.22/apps/using-github-apps/approving-updated-permissions-for-a-github-app)

  When a GitHub App requests additional permissions, you can review what behavior the permissions will enable and decide whether to approve the permissions.

* [Reviewing and revoking authorization of GitHub Apps](/en/enterprise-server@3.22/apps/using-github-apps/reviewing-and-revoking-authorization-of-github-apps)

  You can review the GitHub Apps that you have authorized, and you can revoke your authorization.

* [Reviewing and modifying installed GitHub Apps](/en/enterprise-server@3.22/apps/using-github-apps/reviewing-and-modifying-installed-github-apps)

  You can review the permissions and change the repository access for GitHub Apps that you have installed. You can also temporarily or permanently prevent a GitHub App from accessing resources owned by your account or organization.

* [/saml-and-github-apps](/en/enterprise-server@3.22/saml-and-github-apps)

* [Privileged GitHub Apps](/en/enterprise-server@3.22/apps/using-github-apps/privileged-github-apps)

  Some GitHub Apps are privileged apps, owned by GitHub, that are granted special capabilities.