summary: Old: Sub apps allow developers to create multiple apps under a single Isolated Web App ([IWA](https://chromeos.dev/en/web/isolated-web-apps)) installation. Each Sub app has its own distinct name, icons and OS integrations.
Sub apps appear on the desktop shelf with a distinct identity from the parent IWA, offering separate OS capabilities, such as file type association. This allows a single software package to present different, isolated functionalities to the user while maintaining a single, unified IWA install and update process.
There are three new enterprise policies available to control the Sub apps API:
- [DefaultSubAppsWithoutPromptsSetting](https://chromeenterprise.google/policies/#DefaultSubAppsWithoutPromptsSetting) specifies globally (for all IWAs) if user permission prompts are required to install Sub apps. The policies below can override this default.
- [SubAppsWithoutPromptsAllowedForOrigins](https://chromeenterprise.google/policies/#SubAppsWithoutPromptsAllowedForOrigins) specifies a list of IWA URLs that can add or update Sub apps without user permission prompts.
- [SubAppsWithoutPromptsBlockedForOrigins](https://chromeenterprise.google/policies/#SubAppsWithoutPromptsBlockedForOrigins) specifies a list of IWA URLs that can add Sub apps with user permission prompts only. New: Sub apps allow developers to create multiple apps under a single Isolated Web App ([IWA](https://chromeos.dev/en/web/isolated-web-apps)) installation. Each Sub app has its own distinct name, icons and OS integrations.
Sub apps appear on the desktop shelf with a distinct identity from the parent IWA, offering separate OS capabilities, such as file type association. This allows a single software package to present different, isolated functionalities to the user while maintaining a single, unified IWA install and update process.
There are three new enterprise policies available to control the Sub apps API:
- [DefaultSubAppsWithoutPromptsSetting](https://chromeenterprise.google/policies/#DefaultSubAppsWithoutPromptsSetting) specifies globally (for all IWAs) if user permission prompts are required to install Sub apps. The policies below can override this default.
- [SubAppsWithoutPromptsAllowedForOrigins](https://chromeenterprise.google/policies/#SubAppsWithoutPromptsAllowedForOrigins) specifies a list of IWA URLs that can add or update Sub apps without user permission prompts.
- [SubAppsWithoutPromptsBlockedForOrigins](https://chromeenterprise.google/policies/#SubAppsWithoutPromptsBlockedForOrigins) specifies a list of IWA URLs that can add Sub apps with user permission prompts only.