There is a particular notification I have learned to dislike: “iCloud Storage Full.” It usually arrives at the worst possible moment, right when I am trying to take a photo or back up my phone before an update. The first time it happened to me, my reaction was to assume something was broken. My phone had plenty of space left on it. The problem, I soon learned, was somewhere else entirely.
Apple gives every Apple account 5 GB of free iCloud storage. That sounds reasonable until you realise how much of your phone quietly depends on it: photos, videos, device backups, messages, mail, and files in iCloud Drive all draw from the same small pool. One modern iPhone can fill it in a matter of months without you doing anything unusual at all.
The good news is that most people do not need to pay for more storage right away. In my experience, a focused cleanup recovers enough space to keep backups running and photos syncing, and it costs nothing. This guide walks through the cleanup in the order that actually frees space, starting with the biggest wins, and ends with an honest look at when paying for iCloud+ is the sensible choice after all.
Why 5 GB disappears so quickly
The confusion starts with a simple misunderstanding. Storage on your iPhone and storage in iCloud are two different things. Your phone might have 128 GB or 256 GB of space inside it, but your iCloud allowance is a separate 5 GB bucket that lives on Apple’s servers. When that bucket fills up, backups stop, new photos stop syncing, and you start seeing warnings, even though your phone itself still has room.
What fills the bucket first is almost always the same short list. Photos and videos sit at the top for most people, because a single minute of 4K video can take up several hundred megabytes. Device backups come next, especially if you have ever owned more than one iPhone or iPad on the same account. Messages with years of photos and videos attached quietly grow into gigabytes. iCloud Drive files, mail attachments, and app data fill whatever is left.
That is also why random deleting rarely works. Clearing a few old emails when your photo library is using 4 GB of the 5 GB changes nothing that matters. The trick is to look at the breakdown first, then attack the largest category.
Step 1: See exactly what is using your storage
Before deleting anything, spend two minutes finding the real numbers. On your iPhone or iPad, open Settings, tap your name at the top, then tap iCloud. You will see a coloured bar showing how your storage is divided, and below it a list of categories by size. Tap “Manage Account Storage” (on older versions it is labelled “Manage Storage”) to see the full list.
On a Mac, the same view lives in System Settings, under your Apple account name, then iCloud. You can also check at icloud.com from any browser, though the phone view is clearer.
Write down, or at least note mentally, your top two categories. For most readers those will be Photos and Backups. Everything that follows should be done in that order: biggest first. If your list looks different, follow your own numbers instead of my order. The principle matters more than the sequence.
One warning before you start deleting: iCloud syncs across your devices. Deleting a photo from iCloud Photos removes it from every device signed in to that account. Deleting a backup removes your only restore point for that device. So before any big cleanup, make sure the things you care about exist somewhere else too. A copy on your computer, covered later in this guide, is the safety net that makes the rest of this painless.
Step 2: Clean up photos and videos, the biggest win
Photos are where the real space hides, and the cleanup is less painful than most people expect, because a large share of a typical library is not precious at all. It is duplicates, bursts, screenshots, and videos you watched once and never opened again.
Start in the Photos app, under Albums, and scroll to the Utilities section. There you will find Duplicates, where iOS groups near-identical shots together. Tap Merge to keep the best version and remove the rest. On my own phone this cleared several hundred megabytes in a few minutes, mostly from photos I had taken three times to get one good shot.
Next, look at the media-type albums: Videos, Slo-mo, Bursts, and Screenshots. Screenshots are a surprising culprit. Old boarding passes, memes, and one-off captures accumulate for years and nobody misses them. Bursts are similar: a burst of thirty frames of a moving subject usually contains two good photos and twenty-eight you will never use. Delete in bulk by tapping Select, then tapping through the ones to remove.
Videos deserve a separate pass, because they are so much larger than photos. Sort by size if you can, or simply scroll through your Videos album and be honest about which clips still matter. A two-minute 4K clip of a fireworks display you filmed three years ago is a candidate for your computer, not for your 5 GB cloud allowance.
Then comes the step almost everyone forgets: empty Recently Deleted. When you delete a photo, it sits in the Recently Deleted album for 30 days and still counts against your iCloud storage until it is gone for good. Open Albums, then Utilities, then Recently Deleted, and tap Delete All. Only do this once you are sure about what you removed, because this step cannot be undone.
There is also a lesser-known option worth knowing about: Shared Albums. Photos you put in a shared album do not count toward your iCloud storage. That makes shared albums a reasonable home for collections you want family members to see anyway, such as holiday photos. It is not a dumping ground for your entire library, and shared albums compress photos somewhat, so keep your originals elsewhere if quality matters to you. But for sharing, it is a genuinely useful exception to the 5 GB rule.
Finally, one setting to understand rather than misunderstand: “Optimize iPhone Storage,” found under Settings, then your name, then iCloud, then Photos. This setting saves space on your phone by keeping smaller versions locally and full-resolution originals in iCloud. It does not reduce your iCloud usage at all. In fact, it keeps your full library in iCloud by design. If your goal is to free iCloud space, this setting will not help you, and turning it on expecting it to is a common mistake.
Step 3: Remove old backups and trim the current one
Backups are the second-biggest category, and they contain a quiet surprise for many people: backups of devices they no longer own. Every iPhone and iPad you have backed up to iCloud leaves a backup behind unless you delete it, and an old backup can easily be 2 GB or more.
Go to Settings, tap your name, then iCloud, then Manage Account Storage, then Backups. You will see a backup for each device. If a device on that list is one you sold, gave away, or replaced years ago, tap it and choose Delete Backup. That single action often frees more space than an hour of deleting individual photos.
For the backup of the phone you use now, do not delete it. Instead, shrink it. Tap your current device’s backup and look at the list of apps included. Many apps back up data you do not need a cloud copy of, because the app itself stores your content online anyway. Streaming apps, games with server-side progress, and apps whose data you can re-download are good candidates to switch off. Keep backups on for Photos (if you use iCloud Photos, this is handled separately), Messages, Health, and anything whose data lives only on your phone.
One judgement call deserves a clear answer: if you use WhatsApp, its chat backup can be large, and it is included in your iPhone backup by default in some setups. If you ever need to move your chats to a new phone, a proper chat backup matters, and I have covered that process in detail in my guide to transferring WhatsApp chats to a new phone without losing anything. The point here is simpler: check whether WhatsApp’s own backup is duplicating what your device backup already covers, and do not keep two large copies of the same chats out of habit.
Step 4: Tame Messages, Mail, and iCloud Drive
Messages is the category people underestimate most. A conversation that has run for years, with photos, videos, and voice notes attached, can quietly reach a gigabyte on its own. The fix is not to delete conversations you value. It is to remove the attachments you do not need and to stop the pile growing forever.
On your iPhone, open Settings, then General, then iPhone Storage, then Messages, and review the large attachments listed there. Old videos sent in group chats are usually the biggest items. Separately, consider the auto-delete setting: Settings, then Messages, then Keep Messages, where you can choose 30 days or 1 year instead of Forever. This only affects future accumulation, so it pairs well with a one-time manual cleanup rather than replacing it.
Mail is a smaller but real category. Your iCloud mailbox counts toward the same 5 GB, while mail from other providers, such as Gmail, does not. Delete messages with large attachments from your iCloud mailbox, then empty the Trash and Junk folders, because mail sitting in Trash still counts until it is permanently removed.
iCloud Drive deserves a quick sweep too. Open the Files app, browse iCloud Drive, and sort by size if your view allows it. Old downloads, exported videos, and duplicate documents hide here. Anything you still need but rarely open can move to your computer or an external drive, which brings us to the most effective long-term move of all.
Step 5: Move your photos somewhere that is not iCloud
Deleting is only half the strategy. The other half is giving your photos a second home, so you can clear iCloud without losing anything. There are three practical options, and I have used all three at different times.
The first is your computer. Connect your iPhone to a Mac or Windows PC with a cable, import the photos, and confirm they are safely on the computer before deleting them from iCloud Photos. This is free, it keeps full quality, and it needs no subscription. Its weakness is obvious: a single computer is a single point of failure, so a proper backup of that computer matters too.
The second is another cloud service with a larger free tier. Google Photos, for example, gives every Google account 15 GB of free storage shared across Google services, which is three times Apple’s free allowance. You can set Google Photos to back up your library, then remove those photos from iCloud. This works well, but check the terms before relying on it for years: free tiers change, and storage counts across all of a provider’s services, so a full Gmail inbox eats into the same allowance.
The third is an external drive or USB stick, which is the cheapest long-term option for large libraries. A 1 TB external drive costs roughly what a year or two of a mid-tier cloud plan costs, and it holds far more. The trade-off is convenience: an external drive does not sync automatically, so you need a habit of plugging it in regularly.
My own setup, for what it is worth, is a combination: full-resolution originals on my computer and an external drive, and a smaller set of current photos in iCloud. That way my phone backup keeps working, my recent photos sync across devices, and my 5 GB is not asked to hold my entire photographic history.
What each cleanup move typically frees
The table below is a rough guide based on typical libraries, not a promise. Your numbers will vary with how many photos you take and how long you have used the same account.
| Cleanup move | Space it often frees | Risk level |
|---|---|---|
| Delete an old device backup | 1 to 4 GB | Low, if the device is truly gone |
| Merge duplicate photos and delete bursts | 200 MB to 1 GB | Low, check before merging |
| Delete unwanted videos | 500 MB to several GB | Medium, keep a copy first |
| Empty Recently Deleted | Whatever you just deleted | High if done carelessly, it cannot be undone |
| Trim app data from your current backup | 200 MB to 1 GB | Low, if you keep essential apps on |
| Clear old message attachments | 200 MB to 1 GB | Low, keep conversations you value |
| Move photos to a computer or drive | As much as you move | Low, once you confirm the copy |
The pattern in that table is worth noticing. One or two moves at the top usually solve the problem on their own. If you have already done those and still cannot fit under 5 GB, the honest answer is that your library has simply outgrown the free tier, which leads to the question of paying.
What not to do
A few shortcuts floating around online cause more harm than the storage problem they claim to solve. Third-party “cleaner” apps for iPhone cannot actually clean your system the way Android cleaners claim to, because iOS does not give apps that kind of access. At best they charge a subscription for deleting duplicate contacts or photos you could remove yourself. At worst they ask for broad photo access for little benefit. I would skip them entirely.
Do not delete your current phone’s backup to make the warning go away. That trades a storage notification for a real risk: if your phone is lost or damaged, you lose the restore point that would have brought everything back. The same logic applies to turning off iCloud Backup altogether without setting up an alternative, such as regular computer backups. A warning you can see is better than a loss you cannot undo.
And do not confuse iPhone storage with iCloud storage when following advice online. Tips about deleting unused apps or offloading apps free space on your phone, not in iCloud. They are good advice in general, and I have written a separate guide to freeing up Android storage that covers the same distinction on that platform, but they will not clear an “iCloud Storage Full” warning.
When paying for iCloud+ actually makes sense
There is a point where paying stops being a failure of housekeeping and starts being the rational choice. If you have cleaned up properly, moved your archive elsewhere, and still cannot fit under 5 GB because you genuinely use iCloud Photos across several devices, the paid tiers are not expensive by cloud storage standards. At the time of writing, iCloud+ in the United States costs $0.99 per month for 50 GB, $2.99 per month for 200 GB, and $9.99 per month for 2 TB. Prices vary by country, so check Apple’s pricing page for your region before deciding.
The 50 GB tier is enough for most single-phone users who want backups and photo syncing to simply work without regular maintenance. The 200 GB tier suits families sharing storage or anyone with a large photo library across a phone, tablet, and Mac. The 2 TB tier is for households or professionals with very large libraries, and it also brings features like Private Relay and Hide My Email, though those extras alone are not a reason to buy storage you do not need.
One fair way to decide: add up what your cleanup freed and what remains. If your essential, cannot-move-anywhere-else data sits at 6 or 7 GB, paying $0.99 a month is cheaper than the time you would spend fighting the limit every month. If it sits at 30 GB because you never cleaned up, do the cleanup first, then decide. Paying should be a choice made after a cleanup, not instead of one.
A monthly routine that keeps it from filling up again
A one-time cleanup buys you time, but the storage fills again unless something changes. The routine that works for me takes about ten minutes a month, and I do it on the first weekend of the month, when I am already tidying other things.
First, open Settings, tap your name, then iCloud, and glance at the bar. If Photos or Backups jumped since last month, I know where to look. Second, delete the screenshots and duplicates from the past month while they are still easy to recognise. Third, move any large videos off the phone to my computer. Fourth, check Backups for any device I no longer use. That is the whole routine. It is boring, and that is exactly why it works: nothing in it requires motivation, only a reminder.
If you prefer automation to reminders, the Keep Messages setting from earlier does part of this job for messages, and setting your phone to back up photos to a second service as well gives you a safety net even if you forget a month. Automation handles the steady accumulation. The monthly check handles the surprises.
My honest take
If I had to give one recommendation to someone staring at that “iCloud Storage Full” warning right now, it would be this: check the breakdown, delete the old backup if you have one, merge your duplicates, and empty Recently Deleted. That sequence alone fixes the problem for most people I have helped with this, and it takes under half an hour.
Stay on the free tier if your essential data fits comfortably under 5 GB after a proper cleanup, and put the money you save toward an external drive for your archive. Move to the 50 GB iCloud+ plan if you have done the cleanup and still sit just over the limit, or if you simply do not want to think about storage every month. The plan is cheap enough that the time it saves is worth more than the dollar.
What I would not do is pay for a larger plan before cleaning up, or delete your current backup to silence the warning. The first wastes money on clutter you do not need to store anywhere. The second trades a small annoyance for a real risk. Clean first, decide second, and keep a copy of anything that matters somewhere other than the cloud account you are cleaning. That order has served me well, and I expect it will serve you too.