Guide · storage full
Your phone says storage full? Here is how to fix it.
Here is the short version. When your phone says storage is full, it has run out of its own room for photos, apps and messages. It is not the same as running out of data on your phone plan. The good news is that a phone can almost always be cleared out without losing a single photo, as long as you do it in the right order. This page walks you through it, gently, for both iPhone and Android.
Last updated 4 July 2026 · by Alien IT Solutions
What "storage full" actually means
Your phone has a fixed amount of room inside it, a bit like a cupboard. Every photo, app and message takes up a little of that room, and over the years it fills. When it is full, the phone cannot save new photos or install updates until you make some space.
This is different from your data plan. Your data plan is how much you can browse and stream on the mobile network each month, and it refills on your billing date. Storage is the room inside the phone, and topping up your data will not empty it. So if the phone says storage is full, the fix is here, not with your phone company.
The one rule before you delete anything
Back up first. Always in that order.
The safest way to clear space is to make sure your photos are backed up before you remove anything from the phone. That way, even if you delete a photo from the phone, a copy is still kept safely online. If you have not set that up yet, or you are not sure it is working, it is worth doing first. There is a full plain guide on how to back up your photos so you never lose them, and it is the right place to start.
Once your photos are safely backed up, and you have checked they are really there, you can clear the phone with confidence. The steps below are in the order we would do them ourselves, from the safest and easiest to the ones that need a little more care.
Step one, let the phone offload its own photos
The gentlest fix, and often the biggest.
On an iPhone
Once iCloud Photos is on and your photos are backed up, turn on the setting called Optimise iPhone Storage. Go to Settings, tap your name at the top, then iCloud, then Photos, and choose Optimise iPhone Storage. The phone keeps small versions on the device and stores the full ones safely online, freeing a lot of room while every photo still appears in your Photos app.
On an Android phone
Open the Google Photos app, tap your picture in the top corner, and look for Free up space or Free up device storage. Once your photos are backed up, this removes the copies from the phone that are already safe in Google Photos. You still see every photo in the app, it is just no longer taking room on the phone.
Why this is safe
Nothing is deleted here. The full photos stay in the cloud and the phone simply stops holding heavy copies it does not need. This one step alone often clears the warning for good.
Step two, remove the big things you no longer need
A few large items beat a hundred small ones.
The biggest space is usually taken by a small number of large items, and clearing those goes a long way. The main ones to look at are long videos and old downloads. One long video can take up as much room as hundreds of photos, so removing a couple of videos you no longer want can free more space than deleting a whole album of pictures.
On an iPhone, go to Settings, then General, then iPhone Storage, and you will see a list of what is using the most room, largest first. On an Android phone, open Settings and look for Storage, or use the Files app, which can show your largest files and old downloads. Have a look for videos and downloaded files you do not need, and remove those first. Remember, if the photos and videos are backed up, they are still safe in the cloud even after you remove them from the phone.
Step three, clear app clutter
Apps quietly build up files over time. You can trim them without losing your information.
iPhone, offload unused apps
In Settings, General, iPhone Storage, turn on Offload Unused Apps. This removes the bulky part of apps you have not opened in a while but keeps all your information, so the app comes straight back when you tap it. You can also offload one app at a time from that same list.
Android, free up space
Open Settings, then Storage, and tap Free up space, or use the Files app which suggests clutter to clear. You can also clear the stored cache of a single app in its settings, which is safe and does not remove your account or messages.
Reinstalling is free
If you fully remove an app you had before, you can always get it back at no cost from the App Store or Google Play. Offloading or deleting an app does not touch your photos or messages, which are kept separately.
Step four, remove duplicate photos
Most phones hold copies of the same picture more than once.
It is very common to end up with the same photo saved several times, from sharing it, editing it, or saving it again from a message. Clearing those duplicates tidies your photos and frees a surprising amount of room.
On an iPhone, open the Photos app, go to Albums, scroll down to Utilities, and tap Duplicates. The phone finds matching photos and offers to merge them, keeping the best version. On an Android phone, Google Photos does not have a single duplicates button, but you can review large albums and remove obvious repeats by hand, or use the Free up space option which already skips over copies it has safely backed up. Take your time here and only remove ones you are sure are duplicates.
Step five, empty Recently Deleted
This is the step most people miss, and it is the reason clearing space often does not seem to work. When you delete a photo, it does not leave straight away. It sits in an album called Recently Deleted for 30 days, in case you change your mind, and it keeps taking up room the whole time.
To truly free the space, you need to empty that album. On an iPhone, open Photos, go to Albums, scroll to Recently Deleted, and choose to delete everything in it. On an Android phone, open Google Photos, tap Library, then Bin or Trash, and empty it there. Only do this once you are sure you do not want anything in there, because after this the photos really are gone from the phone. If they were backed up first, they are still safe in the cloud, which is exactly why we back up before we delete.
The one thing to be careful with
Deleting from the phone can also delete from the cloud.
Here is the gentle warning. When your photos are backed up with iCloud Photos or Google Photos, the phone and the cloud are kept as a matching pair. That is a good thing, because your photos stay in step. But it also means that deleting a photo on the phone will usually remove it from the cloud too, since the phone tells the cloud to match.
This is perfectly safe once you understand it. The rule is simply to back up first, check the photos are really in the cloud, and only then let the phone remove its own copies to free room. If you ever find yourself unsure whether deleting something will remove your only copy, that is the moment to stop and ask for a hand rather than guess. A lost photo cannot be brought back.
None of this needs to be done alone. If the menus feel fiddly, or you just want someone to sit with you and make sure nothing important is deleted, we can walk through it with you at your own pace. A slow computer often comes down to the same thing, a drive with no room left, so if that sounds familiar there is a guide on why your computer is slow and how to speed it up. If you are not sure where to begin, our seniors tech help guide lays out the basics in plain words.
Who wrote this
Seniors IT is the patient, in-home help service of Alien IT Solutions, an Australian technology company with more than 18 years of experience. It is the same trusted team, with the time and patience the job needs, and the same people families rely on for business IT and home technology.
Questions people ask
Will deleting photos from my phone delete them from the cloud?
Sometimes yes, so this is the one to be careful with. If your photos are backed up with iCloud Photos or Google Photos, the phone and the cloud are kept as a matching pair, so deleting a photo on the phone usually removes it from the cloud too. That is fine once you know your photos are safely backed up and checked. The safe order is always to back up first, confirm the photos are really in the cloud, and only then let the phone remove its own copies to free up room. If you are ever unsure, do not delete, and ask for a hand first.
What is Recently Deleted and why is it using space?
When you delete a photo it does not leave straight away. It goes into an album called Recently Deleted, which holds it for 30 days in case you change your mind. That is a kind feature, but it means the photos are still on the phone, still taking up room, even though you thought they were gone. To actually free up the space, open the Recently Deleted album and empty it. On an iPhone it is inside the Photos app under Albums, and on Android it is inside Google Photos under Library. Only empty it once you are sure you do not want anything in there.
Do I need to buy more storage?
Often not straight away. Most phones have plenty of room being taken up by things you do not need, old videos, duplicate photos, downloads and app clutter, and clearing those usually buys back a lot of space for free. Work through the safe steps first. If the phone still fills up quickly after a proper clean-up, then paying a small monthly fee for more cloud storage can be worth it, because it lets the phone keep your photos safe online while holding fewer of them on the phone itself. Try the free clean-up before you pay for anything.
Why does clearing space not seem to help?
The usual reason is the Recently Deleted album. You delete photos, the phone still says it is full, and it is because those deleted photos are sitting in Recently Deleted for 30 days and have not truly left. Empty that album and the space comes back. The other common reason is deleting lots of small things, like a few photos, when the real space is being taken by a handful of large videos. Sort by size or look for your longest videos first, because one long video can be worth hundreds of photos.
Is storage full the same as running out of data?
No, and this trips a lot of people up. Your data plan is how much you can browse and stream over the mobile network each month, and it refills on your billing date. Storage is the fixed amount of room inside the phone for photos, apps and messages, and it does not refill on its own. When the phone says storage is full it means the room inside the phone is full, and topping up your data plan will not fix it. The steps on this page are what free up storage.
Is it safe to delete apps to make room?
Yes, and you can get most of the benefit without losing anything. On an iPhone there is a setting called Offload Unused Apps, which removes the bulky part of an app you have not used in a while but keeps your information, so it comes straight back when you tap it. On Android, Google Play can free up space in a similar way. If you delete an app you bought or downloaded before, you can always install it again for free from the App Store or Google Play. Your photos and messages are separate, so removing an app does not touch them.
Patient help, in plain words.
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