> ## Documentation Index
> Fetch the complete documentation index at: https://moengage.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Push Notification behavior in Private Space and Hidden Mode

> Learn how Android 15 Private Space and Hidden Mode affect push notification delivery, visibility, and engagement tracking for secure app areas.

# Private Space in Android 15

In Android 15, google introduced Private Space, a feature that allows users to create a separate, secure area on their devices for sensitive applications. This space operates under a distinct user profile and requires additional authentication. For more information, see [here](https://umang91.medium.com/android-15-private-spaces-a08983480deb).

## Notification Behavior of Apps in Private Space

The following scenarios are applicable when the app is in the private space:

* Whenever a notification is posted by an application installed in the private space, it has a lock icon indicating it is from an application in the private space.
* The notification behavior for applications installed in private spaces varies depending on the space's state, i.e., locked or unlocked.
  * When the space is unlocked, notifications are received and displayed as usual, like any application in the main space.
  * When the private space is locked:
    * The application does not display any notifications.
    * Once the space is unlocked, notifications received while the space is locked are displayed or delivered to the application.
* When a space is transitioned to the locked state from the unlocked state, the system dismisses/clears all private space app notifications from the notification shade.
* Expired messages based on the **Expiration settings** before the space is unlocked are not displayed/delivered to the application, and the associated notification impressions are not captured for such messages.
  <img alt="iOS15.png" src="https://mintcdn.com/moengage/M3SzEdkQVgGAjJCt/images/moengage_76b90c.png?fit=max&auto=format&n=M3SzEdkQVgGAjJCt&q=85&s=50711d1f98da9e8f1bf46fc5dc373b0f" width="1796" height="452" data-path="images/moengage_76b90c.png" />

# Hidden Mode in iOS 18

In iOS 18, Apple introduced Hidden Mode, a new feature that allows users to lock and hide apps. This enhancement to privacy and security enhances the user experience. For more information, see [here](https://support.apple.com/en-in/guide/iphone/iph00f208d05/18.0/ios/18.0).

With this feature, you can add additional security for app launch:

* Require user authentication (face ID, Touch ID, or password)
* Hide and require authentication.

## Notification Behavior of Apps in Hidden Mode

The following scenarios are applicable when the app is in the hidden mode:

* The app’s notifications aren’t displayed. New notifications received after the app is removed from the hidden mode are displayed.
* Notification impressions are tracked regardless of whether the app is in hidden mode and whether the notification is displayed or not.