If you’ve longed for a dedicated iCloud Drive iOS app, it’s here with iOS 9 beta, albeit hidden by default. All users have to do is go to Settings > iCloud > iCloud Drive > Show on Home Screen > ON:

Once toggled on, you should see the iCloud Drive on your Homescreen, and within it, folders containing documents you’ve saved to the cloud from Apple’s own apps and also third party apps:

Some complaints of iCloud Drive was the inability to access files or view them in an app; looks like those days are gone. Now, anything stored within iCloud Drive can be easily shared via the iOS share sheet.