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"iCloud Storage Full" is probably the most-seen notification in Apple's entire ecosystem, and the reason is arithmetic. Apple still gives you 5GB free — the same allowance it launched with in 2011 — while a single photo from a modern iPhone is several times larger than one from that era.
The notification also tends to arrive at the worst moment: your phone stops backing up, and you find out weeks later.
Everything Shares One 5GB Pool
The free 5GB isn't 5GB for photos. It's 5GB for all of this together:
- Device backups — every iPhone and iPad on your Apple Account
- iCloud Photos — your whole library, if it's switched on
- iCloud Drive — documents, desktop sync from a Mac
- iCloud Mail — if you use an @icloud.com address
- App data — messages, voice memos, third-party app storage
A single iPhone backup can take most of the 5GB by itself. Add a photo library and you were never going to fit.
iPhone Storage Is Not iCloud Storage
This trips up a huge number of people, so it's worth being blunt about.
iPhone storage is the physical chip in your phone. It's what fills up when you can't install an app or shoot a video.
iCloud storage is Apple's online space, shared between your devices.
They're separate, and actions on one do nothing for the other. Deleting apps frees phone storage and doesn't give you a single byte of iCloud. Buying 200GB of iCloud doesn't give your phone more room to record video. If you're not sure which warning you're looking at, check whether it mentions iCloud by name — the fix is completely different.
Find What's Actually Using It
Don't guess, and don't start deleting photos. Look first:
On iPhone or iPad: Settings → your name at the top → iCloud → Manage Account Storage.
On a Mac: System Settings → your name → iCloud → Manage.
You'll get every consumer listed largest-first. In most cases the top entry is either Backups or Photos, and there's frequently an easy win sitting in there: backups for devices you no longer own. An old iPhone you traded in years ago can still be holding gigabytes. Deleting that backup costs you nothing and is often the entire problem.
Free Up Space Without Losing Anything
In rough order of "free space gained per regret":
1. Delete backups for devices you don't have. Manage Account Storage → Backups. Dead weight, pure gain.
2. Trim what gets backed up. Inside a device's backup settings you can switch off individual apps. Anything that already stores its own data in the cloud doesn't need to be inside the backup too.
3. Empty Recently Deleted in Photos. Deleted photos sit there for up to 30 days and keep consuming your quota the entire time. Photos → Albums → Recently Deleted → Delete All.
4. Clear out iCloud Mail. If you use an @icloud.com address, old mail with attachments counts. Sort by size and clear the big ones.
5. Then consider paying. If you have a real photo library, 5GB was never going to be enough, and the cheapest tier costs less than a coffee.
What the Plans Cost in the US
Apple's current US iCloud+ tiers, per Apple's plans and pricing documentation:
| Storage | US price per month | Reasonable for |
|---|---|---|
| 5 GB | Free | One device, backups only, no photo library |
| 50 GB | $0.99 | One phone with a modest photo library |
| 200 GB | $2.99 | Most people; shareable with family |
| 2 TB | $9.99 | Families, large video libraries |
| 6 TB | $29.99 | Heavy creative or multi-device use |
| 12 TB | $59.99 | Professional media volumes |
Prices are before applicable tax and differ by country. Paid tiers can be shared through Family Sharing, which makes the 200GB plan considerably better value than it first appears — one subscription covering several people's backups.
Mail Drop: Free, and Doesn't Touch Your Quota
This is the single most useful thing in this article, and Apple does a poor job of advertising it.
If your problem isn't really storage but sending someone a large file, Mail Drop handles attachments up to 5GB — and per Apple's Mail Drop documentation, those attachments do not count against your iCloud storage. It has its own separate 1TB allowance, and attachments expire after 30 days, which rolls that allowance over for you.
So a full iCloud account does not stop you emailing a 4GB video. Attach it in Mail on your iPhone, iPad or Mac, or from iCloud.com/mail, and Mail will offer Mail Drop when the file is too big to send normally.
Two limits worth knowing: an uncompressed folder won't go through Mail Drop, so zip it first, and the recipient has 30 days to download before the attachment expires.
Sending Files Bigger Than That
Mail Drop stops at 5GB and requires the recipient to be dealing with email. If you're over that, or you'd rather not send email at all, the file has to go somewhere else.
No account, no quota
Realtime Sender takes files up to 30GB free with no sign-up, and gives you a short code to share however you like — text message, WhatsApp, read it out over the phone. Nothing is stored against any quota of yours, and the file deletes itself after download or when the code expires, so there's nothing to clean up afterwards.
Because transfers here are deliberately temporary, this is for getting a file to someone now — not for long-term storage. If you need the file to still be there next month, that's what iCloud Drive is for.
If you're moving files off an iPhone to free up space rather than sending them to a person, also worth reading: sending files from iPhone to Android and transferring files between computers.
Frequently Asked Questions
Why is my iCloud storage full when I have 5GB?
Because 5GB covers everything at once: your device backups, iCloud Photos, iCloud Drive files, iCloud Mail and app data. A single iPhone backup can consume most of it on its own. Apple has kept the free tier at 5GB since 2011, while phone cameras and app data have grown enormously.
Is iPhone storage the same as iCloud storage?
No, and confusing them is the most common mistake. iPhone storage is physical space on the device itself. iCloud storage is Apple's online space shared across your devices. Deleting apps frees iPhone storage but does nothing for iCloud, and buying iCloud storage does not give your phone more room.
How much do iCloud+ plans cost in the US?
Apple's US iCloud+ tiers are 50GB for $0.99 per month, 200GB for $2.99, 2TB for $9.99, 6TB for $29.99 and 12TB for $59.99, before applicable tax. The free tier remains 5GB. Paid plans can be shared with family, and prices vary by country.
Does Mail Drop use my iCloud storage?
No. Apple states that Mail Drop attachments do not count against your iCloud storage. Mail Drop sends attachments up to 5GB, has its own separate 1TB allowance, and attachments expire after 30 days. It is the most overlooked way to send a large file from an Apple device without buying storage.
What is actually filling my iCloud storage?
Check Settings, then your name, then iCloud, then Manage Account Storage. That screen lists every consumer in order of size. For most people the largest item is either device backups or Photos. Old backups from devices you no longer own are a frequent and easily deleted culprit.
How do I send a large file if iCloud is full?
Use Mail Drop from the Mail app, since it does not touch your iCloud quota and handles up to 5GB. For files larger than that, or to send to someone without using email at all, upload to a temporary transfer service and share the code or link instead. Neither approach requires freeing up iCloud space first.
Storage tiers and pricing change, and differ by country. Figures were checked against the Apple Support pages linked above in October 2026; Apple is always the authority for current pricing in your region. Content from those pages has been summarised and rephrased rather than reproduced.