Extension-only apps are apps that don't have embedded app pages. Because they're made up entirely of extensions, you can host extension-only apps on Shopify. > Note: > Extension-only apps can only be installed with [custom distribution](https://shopify.dev/docs/apps/launch/distribution/select-distribution-method). ## Create an extension-only app Create a new app, give it a name, and choose **Build an extension-only app**. ```bash shopify app init ``` After you've created your app, you can [configure your app](/docs/apps/build/cli-for-apps/app-configuration), [generate extensions](/docs/api/shopify-cli/app/app-generate-extension), and [deploy your app](/docs/apps/launch/deployment/app-versions). ## App extensions that can be included in an extension-only app The following table lists the app extensions that are compatible with extension-only apps.
Domain | Extension type | Merchant experience | Create using | Description |
---|---|---|---|---|
Admin | UI extension | actions and/or blocks | Shopify CLI | Add custom cards or modals to resource pages in the Shopify admin. |
Admin links (deprecated) | links | Partner Dashboard | Add quick links to your app from any page in the Shopify admin. | |
Bulk action links (deprecated) | actions | Partner Dashboard | Add bulk app actions to any resource page in the Shopify admin. | |
Subscription links (deprecated) | links | Partner Dashboard | Customize the link that allow users to see the subscription details in your subscription-enabled app. | |
Checkout | UI extension | blocks | Shopify CLI | Add custom workflows and functionality at defined points in the checkout flow. |
Shopify Functions | functions | Shopify CLI | Inject custom code into key areas of the Shopify platform, such as checkout or cart. | |
Post-purchase UI extension | blocks | Shopify CLI | Help users increase sales by adding products for purchase after checkout. | |
Customer accounts | UI extension | actions and/or blocks | Shopify CLI | Add functionality at defined points in customer accounts. |
Flow | Flow actions | actions | Shopify CLI | Connect your app to Shopify Flow so that your app receives data when a workflow action runs. |
Flow lifecycle events | Not used for merchants | Shopify CLI | Notifications from Shopify Flow about stores using triggers in enabled workflows. | |
Flow templates | templates | Shopify CLI | Create an example workflow that's available in Flow's template library and can be copied into a merchant's store. | |
Flow triggers | triggers | Shopify CLI | Connect your app to Shopify Flow so that events that occur in your app can trigger workflows. | |
POS | UI extensions | actions, blocks, and/or smart grid tiles | Shopify CLI | Add custom functionality at defined areas in the POS app. |