iCloud Storage Full on iPhone?
Here is How to Fix It

Your iPhone is showing "iCloud Storage Almost Full" because backups, photos, WhatsApp data, and Messages are filling your 5 GB (or even your paid plan). You can check exactly what is eating space and start freeing it up right from your iPhone in under 10 minutes.

How to check iCloud storage on iPhone

Open Settings on your iPhone. Tap your name at the very top of the screen. Then tap iCloud.

You will see a colored bar showing your storage breakdown. Each color represents a category: blue for backups, yellow for photos, green for Messages, and so on. Tap on the bar or on Manage Account Storage to see the exact numbers.

This screen shows every app and service using your iCloud. The list is sorted by size, biggest first. For most people, the top three offenders are:

• Backups — 10-50 GB per device
• Photos — 5-100+ GB depending on how many years of photos you have
• Messages — 1-15 GB if you share lots of images and videos in iMessage or SMS

For Apple's official guide to checking storage, see Manage your iCloud storage.

What eats iCloud storage on iPhone

Your iPhone contributes to iCloud storage in ways you might not expect. Here is what is actually filling up your account.

iCloud Backups. Every night, when your iPhone is plugged in and on WiFi, it backs up to iCloud. Each backup stores your app data, settings, home screen layout, messages, and photos that are not already in iCloud Photos. A single iPhone backup is typically 5-25 GB. If you have an old iPad or a previous iPhone that you no longer use, its backup is still sitting in iCloud. Two old device backups can easily eat 40 GB.

iCloud Photos. If you turned on iCloud Photos (and most people did during iPhone setup), every photo and video you take gets uploaded. That trip to Portugal? 2 GB. Your kid's first year? 5 GB. Three years of screenshots, memes, and accidental pocket photos? Another 3 GB. It adds up fast.

WhatsApp. WhatsApp backs up your chat history to iCloud. If you are in active group chats with lots of images and videos, this can be 2-10 GB. The sneaky part: WhatsApp uses its own backup system that runs separately from your iCloud backup, so the storage hit is additive.

Messages. If "Messages in iCloud" is enabled (Settings > [Your Name] > iCloud > Messages), every iMessage conversation, including all the images, videos, and attachments, syncs to iCloud. Group chats where people share videos are the biggest offenders here.

Other apps. Voice Memos, Pages, Numbers, third-party apps that sync to iCloud — they all add up. Individually small, collectively significant.

How to free up iCloud storage from iPhone

Work through these in order. Start with the biggest savings first.

Delete old device backups

Go to Settings > [Your Name] > iCloud > Manage Account Storage > Backups. You will see every device that has a backup in your iCloud account.

Delete backups for any device you no longer own. That old iPhone 11 backup? Gone. The iPad you gave to your nephew? Delete it.

For your current iPhone, you have a choice: keep the iCloud backup running (which uses 5-25 GB), or switch to local backups via your Mac. Local backups are free, faster, and do not count against your iCloud storage. See our guide to deleting iCloud backups for the full walkthrough.

Clean up WhatsApp storage

Open WhatsApp > Settings > Storage and Data > Manage Storage. This screen shows you the total size and lets you review large files. You can filter by "Larger than 5 MB" and delete old videos and images you no longer need.

Then go to WhatsApp > Settings > Chats > Chat Backup. You can see when the last backup was made and how big it is. If you do not need chat history backed up to iCloud, turn off "Auto Backup" and delete the existing backup. This alone can free 2-8 GB.

To delete the WhatsApp backup from iCloud: iPhone Settings > [Your Name] > iCloud > Manage Account Storage > WhatsApp > Delete Data.

Clean up Messages

Go to Settings > General > iPhone Storage > Messages. iOS breaks down message storage by category: Photos, Videos, GIFs, Stickers, and Other. Tap into each category and delete what you do not need.

Alternatively, you can disable Messages in iCloud entirely: Settings > [Your Name] > iCloud > Messages — turn it off. Your messages will still be stored locally on your iPhone but will stop counting against your iCloud storage.

Manage iCloud Photos from iPhone

If Photos is using 30+ GB of your iCloud, you cannot fix it entirely from iPhone. The best approach is to download all originals to your Mac first (open Photos on Mac > Settings > iCloud > "Download Originals to this Mac"), wait for the download to finish, and then turn off iCloud Photos.

From iPhone, you can help by deleting photos and videos you do not need. Open Photos, go to Albums > Recently Deleted, and tap Delete All. The Recently Deleted album keeps deleted photos for 30 days, and they still count against your iCloud storage until they are permanently removed.

iCloud storage is shared across all your Apple devices

One thing that confuses people: iCloud storage is not per-device. It is per Apple ID. Your iPhone, iPad, Mac, and any other Apple device all share the same iCloud storage pool.

This means your Mac's Desktop files, your iPad's backups, and your iPhone's photos all compete for the same 5 GB (or whatever plan you are on). When your iPhone says "iCloud Storage Full," it might be your Mac's Desktop sync causing the problem, not your iPhone at all.

That is why iCloud Cleaner works from your Mac to clean the shared iCloud account. It scans everything connected to your Apple ID — including the storage used by your iPhone backups and photos — and shows you the full picture in one place. You can clean up the biggest offenders without jumping between devices.

How to stop the "iCloud Storage Almost Full" notification

The notification will stop once your usage drops below your plan limit. If you are on the free 5 GB plan, get under 5 GB. If you are on the 50 GB plan, get under 50 GB.

There is no way to dismiss the notification permanently without either freeing space or upgrading your plan. Apple wants you to upgrade. But you do not have to.

If you follow the steps above, most people can free 20-50 GB within an hour. That is enough to go back to the free 5 GB plan and never see the notification again.

What if nothing seems to work

Sometimes the iCloud storage bar does not update immediately after deleting files. Give it 10-15 minutes. Large deletions (like removing a backup) can take a while to reflect.

If your storage still shows as full after cleaning up, check iCloud.com from a browser. The web interface sometimes shows a more accurate picture. Also check iCloud Drive — files you forgot about might be hiding in folders you do not regularly open.

For a broader look at all the reasons iCloud fills up, read our complete guide to fixing iCloud storage full.