FAQ library

iCloud & iCloud Photos

How iCloud Drive, iCloud Photos and online-only files use space on your Mac, and how Storage Studio frees that space without deleting anything from iCloud.

Storage Studio and iCloud 24

Online-only files and Optimize Mac Storage 17

iCloud Drive basics 23

Desktop & Documents in iCloud 10

iCloud Photos and the Photos library 28

iCloud and external drives 7

iCloud storage space and plans 18

Universal Clipboard and Handoff 5

Troubleshooting iCloud space 15

Sharing folders and photo libraries 5

  • How do I share a folder in iCloud Drive with someone?

    In Finder, Control-click the folder in iCloud Drive, choose Share (or Collaborate), invite people and set whether they can edit or only view. Shared folders sync for everyone, and their contents count toward the owner's iCloud storage.

  • Does a shared iCloud Drive folder use my storage or the other person's?

    The owner's: shared folder contents count toward the iCloud storage of whoever shared it. Downloaded copies still use space on each participant's Mac, and can be made online-only there.

  • What is iCloud Shared Photo Library?

    It's a separate library in Photos that a small group can all add to and edit, alongside each person's personal library. Set it up in Photos → Settings → Shared Library. Deletions apply for everyone.

  • Does iCloud Shared Photo Library use my iCloud storage?

    It uses only the iCloud storage of the person who created it; participants add photos without using their own space. On each Mac the photos still take local disk space, which Optimize Mac Storage can reduce.

  • Do Shared Albums count against my iCloud storage?

    No — Shared Albums don't count toward your iCloud storage, but they store reduced-size copies, so they're for sharing, not archiving. The iCloud Shared Photo Library is different: full originals, counted against its creator's storage.

Messages, Mail and device backups in iCloud 7

  • How do I delete old iPhone or iPad backups from iCloud on my Mac?

    In System Settings → your name → iCloud → Manage → Backups, select the old device and click Delete. Only delete backups you'll never restore from; deleting one also turns off iCloud Backup for that device. iCloud Photos isn't affected.

  • Does deleting an iCloud backup delete my photos?

    Not if iCloud Photos is on — the photo library is stored separately and isn't touched. If iCloud Photos is off on that device, its photos may be in the backup, so make sure they're saved elsewhere before deleting it.

  • How do I make my iPhone's iCloud backup smaller?

    In the iPhone's iCloud settings, open the storage list → Backups → this iPhone and turn off backup for big apps that don't need it. Turning on iCloud Photos and Messages in iCloud also keeps photos and attachments out of the backup.

  • Does Messages in iCloud use my iCloud storage and my Mac's space?

    Yes. With Messages in iCloud on, conversations and attachments count toward iCloud storage, and the Mac keeps its own local copy too. Delete big attachments and old conversations, or set a shorter keep time in Messages settings.

  • What happens if I turn off Messages in iCloud on my Mac?

    The Mac stops syncing conversations via iCloud: existing messages stay on it and new ones still arrive, but deletions and read status no longer sync. Turning it off on all devices moves message history out of iCloud storage into each device.

  • Does iCloud Mail count toward my iCloud storage?

    Yes — iCloud Mail messages and attachments, including Sent and Trash, count toward iCloud storage, and a full iCloud can stop new mail arriving. Delete large emails and empty the account's Trash to free space.

  • Do WhatsApp chat backups use my iCloud storage?

    Yes — WhatsApp on iPhone backs chats and media up to iCloud, and it counts toward your storage, growing fast with videos. Exclude videos in WhatsApp's backup settings, and remove old backups from iCloud's Manage list only if you won't need them.

Security and Advanced Data Protection 3

  • What is Advanced Data Protection for iCloud?

    It's an optional iCloud setting that protects most iCloud data, including Drive, Photos and backups, so only your trusted devices can read it — not Apple. The trade-off: Apple can't recover your data, so you must set up a recovery contact or key.

  • What happens if I lose access to my account with Advanced Data Protection on?

    You'll need a trusted device's passcode, your recovery contact or your recovery key. Apple can't unlock data protected by Advanced Data Protection, so if every recovery method is lost, that data is gone — keep the key safe and a separate backup.

  • Is iCloud Drive safe for sensitive documents?

    iCloud protects data with encryption and two-factor authentication, and Advanced Data Protection goes further so Apple can't read most of it. The main risks are weak account security and losing access — use a strong password, consider ADP, and keep an offline copy.

iCloud on the web, Windows and other apps 6

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