Unlike standard app alerts, these notifications stay pinned to your status bar. You can choose to make them "ongoing" so they cannot be swiped away by accident.
Add "actions" to your notifications, such as a "Done" button or a link to another app, to perform tasks directly from the lock screen. collateral-create-notifications-5-1-1-6-apk-pro-full
Add detailed descriptions or lists within the notification body, making it useful for shopping lists or quick work notes. Unlike standard app alerts, these notifications stay pinned