If you store a lot of documents in iCloud Drive, and you're on a limited data plan, you may not want apps moving large files around unless you're on Wi-Fi. Cellular data use with iCloud Drive is nowhere nearly as intensive as streaming music or videos, but if you want to make sure not a bit goes by without your say so, you can manage it all in Settings.

How to turn cellular data on or off for iCloud Drive syncing

  1. Launch the Settings app on your iPhone or iPad.
  2. Tap on iCloud.

    Launch the settings app on your iPhone or iPad and tap on iCloud.

  3. Tap on iCloud Drive.
  4. Scroll all the way to the bottom and turn Off the option for Use Cellular Data.

    Tap on iCloud Drive and scroll all the way to the bottom and turn off the cellular data option.

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