Notification attachments

iOS 10 adds attachments to notifications. An attachment is an image, video, or audio file which is downloaded to the device when a notification is received and shown alongside the notification. A thumbnail is shown when the notification is not expanded. The full size attachment is shown when the notification is expanded.

To expand a notification on 3D Touch devices simply force touch any notification. On non-3D Touch devices swipe and tap the "View" button.
- alias: Notify iOS app
      service: notify.ios_robbies_iphone_7_plus
        message: "Something happened at home!"
            url: ""
            content-type: png
            hide-thumbnail: false


  • The thumbnail of the notification will be the media at the url.
  • The notification content is the media at the url.
  • Attachment can be used with custom push notification categories.


An unexpanded push notification with an attachment.

The same notification but expanded to show the full size attachment

Supported media types

If the attachment does not appear please ensure it is in one of the following formats:

Audio attachments

Maximum file size: 5 MB

Allowed Formats: AIFF, WAV, MP3, MPEG4 Audio

Image attachments

Maximum file size: 10 MB

Allowed Formats: JPEG, GIF, PNG

Video attachments

Maximum file size: 50 MB

Allowed Formats: MPEG, MPEG2, MPEG4, AVI


  • url (Required): The URL of content to use as the attachment. This URL must be accessible from the Internet, or the receiving device must be on the same network as the hosted content.
  • content-type (Optional): By default, the extension of the URL will be checked to determine the filetype. If there is no extension/it can’t be determined you can manually provide a file extension.
  • hide-thumbnail (Optional): If set to true the thumbnail will not show on the notification. The content will only be viewable by expanding.