Which iCloud feature is supported as Tier 1?

The iCloud feature recognized as supported at Tier 1 is iCloud Drive. This service allows users to safely store files and access them across all their Apple devices. Users can save documents, photos, and videos directly into iCloud Drive, providing a seamless way to keep their files synchronized. Additionally, it supports collaboration with others, as users can share files and folders with ease.

iCloud Drive is designed to work smoothly with various applications, making it versatile and user-friendly. By having access to the latest documents no matter the device, it significantly enhances productivity for users.

While iPhoto Journal, iCloud Music Library, and iCloud Networking might have various functionalities, they do not fall under the Tier 1 support list, which focuses on the most widely used and essential features within the iCloud ecosystem.