Short answer
Open Settings → your name → iCloud → Storage (or Manage Account Storage) to see what uses the space. Usually it’s Photos and backups. Delete photos and videos you don’t need (with iCloud Photos on, they’re removed from iCloud too), backups of old devices and large Messages attachments. Turning on Optimize iPhone Storage won’t help: it saves space on your iPhone, not in iCloud.
See what uses your iCloud storage
Apple gives you 5 GB for free, and it fills up fast. Before you pay for iCloud+, see where the space went:
- Open Settings and tap your name at the top.
- Tap iCloud, then Storage or Manage Account Storage.
- Check the bar and the list: they show how much Photos, backups, Messages, iCloud Drive and Mail take.
On iOS 17 and later, iCloud settings also have Recommended for You, where your iPhone suggests what you can remove. Voice Memos, FaceTime data and, from iOS 26, contact photos and posters use iCloud storage too, but they’re usually small.
Photos and videos: usually the biggest part
With iCloud Photos on, your iPhone and iCloud share one library. To make it smaller in iCloud, you delete photos and videos: in Photos on your iPhone, on iCloud.com or on another device signed in to the same Apple Account. What you delete is removed everywhere.
- Start with videos. One minute of 4K video takes as much space as dozens of photos. Open Collections → Media Types → Videos and review the oldest ones. See also what to delete first when storage is full.
- Then screenshots and duplicates. How to delete screenshots and how to remove duplicate photos.
- Recently Deleted no longer counts. Apple says items in Recently Deleted don’t count toward your iCloud storage. On the iPhone itself, they keep using space until you empty the album.
- Shared Library. If you use iCloud Shared Photo Library, only your Personal Library counts toward your storage, so delete while viewing that one.
Optimize iPhone Storage doesn’t free iCloud space: it keeps smaller copies on your phone and the originals in iCloud. Turning off iCloud Photos on one iPhone doesn’t delete anything from iCloud either. To keep photos but not in iCloud, copy them to a computer first, then delete them. See how to delete photos from your phone but keep them in the cloud for the safe way to do it.
Backups of old devices
The backups list often holds a backup of an old iPhone or iPad you no longer use. You can delete it:
- Settings → your name → iCloud → Storage (or Manage Account Storage).
- Tap Backups and choose the device.
- Tap Turn Off and Delete from iCloud and confirm.
Deleting a backup also turns off iCloud Backup for that device. Keep the backup of the iPhone you use: without it there’s nothing to restore from if the phone is lost.
Messages attachments
With Messages in iCloud on, photos and videos in your conversations use iCloud storage too. To remove them from one conversation:
- Open the conversation and tap the contact’s name at the top.
- Tap Photos. On iOS 18 and earlier, tap See All in the Photos section.
- Tap Edit, then Select Photos (on iOS 18 and earlier, Select), and choose what to remove.
- Tap Delete, then Delete Attachment to confirm.
To delete a whole conversation, swipe left on it in the list and tap Delete.
iCloud Drive and Mail
- iCloud Drive: in the Files app, tap Browse → iCloud Drive, tap the More button, then Select, choose old files and delete them. Large downloaded PDFs and archives are the first candidates.
- iCloud Mail: emails with big attachments use space too. Delete them and empty the Trash. Old promotions and newsletters are easy to clear with iCloud Mail Cleanup in the Mail app.
Clean up iCloud photos by swiping in Shoo
With iCloud Photos on, changes you make in Shoo sync like any change in the Photos app. So cleaning up your library in Shoo frees iCloud space as well. Shoo never uploads your photos anywhere: it shows your library and deletes through iOS itself.
- Big files first: under Filters, set the order to Longest videos first.
- Then the old stuff: set the period to Older than 30 days, or A specific month to go month by month.
- One album at a time: as the Source, pick Screenshots, Videos or any of your albums (this needs full photo access).
Photos you swipe away wait in the queue. Review it and tap Delete all; iOS asks you to confirm, and the photos go to Recently Deleted. How deleting works in Shoo.
iPhone version coming soon.
Questions
Does Optimize iPhone Storage free up iCloud space?
No. It saves space on your iPhone: the phone keeps smaller copies, and the full-resolution originals stay in iCloud. The size of your library in iCloud doesn’t change.
What happens when iCloud storage is full?
Your iPhone stops backing up to iCloud, new photos and videos stop uploading to iCloud Photos, iCloud Drive stops updating, and your iCloud email address stops receiving mail. Also, while you’re over the limit, photos and videos you delete are removed right away and don’t go to Recently Deleted.
If I turn off iCloud Photos on my iPhone, are my photos deleted from iCloud?
No. Turned off on one device, iCloud Photos keeps your photos in iCloud; changes on that iPhone just stop syncing. If you turn off iCloud Photos for your whole account, Apple deletes the photos from iCloud 30 days later, so download the originals first.
Do photos in Recently Deleted count toward iCloud storage?
No, Apple doesn’t count them. On your iPhone, though, they take up space for up to 30 days, until you empty Recently Deleted.
