How to Free Up Space on iPhone When Storage Is Full

Quick answer: to free up space on iPhone, open Settings > General > iPhone Storage to see what’s using it, then work from the biggest category down. Delete or move photos and videos and empty Recently Deleted, offload apps you don’t use, trim Messages attachments, and remove downloads you’ve finished with. An iCloud backup doesn’t free device space; Optimize iPhone Storage does.

The rest of this guide takes each fix in roughly the order of how much space it returns, then explains why storage can stay full with iCloud or after you delete photos.

See what’s using your iPhone storage

Before deleting anything, find out where the space went. Guessing usually means deleting small things while one big category stays untouched.

1. Open Settings, tap General, then tap iPhone Storage.
2. Give the colored bar at the top a moment to finish calculating. It splits your storage into categories such as Apps, Photos, Media, and Messages.
3. Check the recommendations under the bar and tap Show All if there are more. Each one either turns on a setting or opens a list of items you can review and delete.
4. Scroll down to the list of apps and how much space each one uses. Tap an app for more detail and the options to offload or delete it.

Apple’s article on checking the storage on your iPhone explains each category. It also notes that cached and temporary data might not count toward an app’s usage, so the per-app numbers won’t always add up to the bar.

The biggest wins, in order

1. Photos and videos (then empty Recently Deleted)

On most phones this is the largest category, and video grows it fastest. Three things make the biggest difference:

• Delete what you don’t need. In Photos, tap Select, pick the photos and videos, then tap the trash button. Long videos you’ve already shared are a good place to start.
• Clear out duplicates and near-misses. The Photos app can merge exact duplicates for you; our guide to deleting duplicate photos on iPhone covers it step by step. BlueHammer Cleaner goes further, finding duplicates, blurry photos, burst shots, and screenshots on the device itself, so you review them in groups instead of scrolling through years of photos.
• Empty Recently Deleted. Deleted items stay in Photos for 30 days. Until you remove them, they still take up space. Go to Photos > Collections, tap Recently Deleted (below Utilities), tap View Album, unlock it, then tap Select and delete.

If you use iCloud Photos, deleting a photo on your iPhone also deletes it from iCloud and your other devices. So if you’d rather move photos off the phone than lose them, copy them somewhere else first. BlueHammer Drive is one option: encrypted storage for photos, videos, and documents with automatic backup. Wait until the upload has finished before you delete anything from the phone. It’s also worth backing up your iPhone before a big cleanup.

2. Offload apps you don’t use

Games, video editors, and navigation apps with offline maps are often among the largest items in the app list.

1. In iPhone Storage, tap an app you rarely use.
2. Tap Offload App. This frees the space the app itself uses but keeps its documents and data.
3. The icon stays on your Home Screen with a cloud symbol. Tap it any time to reinstall the app and pick up where you left off.

Delete App on the same screen removes the app and its data. Use it for apps you’re done with. iPhone can also offload unused apps automatically when space runs low; Apple’s guide to managing storage on iPhone shows where to turn that on.

3. Messages attachments and how long you keep them

Years of photos, videos, and voice messages in group chats add up.

1. Open a conversation and tap the contact or group icon at the top.
2. Tap a category such as Photos, then tap Edit and Select.
3. Select the attachments you don’t need and delete them.

To stop it building up again, go to Settings > Apps > Messages, tap Keep Messages, and choose 1 Year or 30 Days. Be sure about this one: any option other than Forever automatically deletes older conversations, including their attachments.

Deleted messages also wait in a Recently Deleted folder for up to 30 days. To remove them sooner, open the menu at the top of the conversation list in Messages and tap Recently Deleted. If you use Messages in iCloud, deleting on one device deletes everywhere.

4. Safari and app data

Safari’s website data, and the documents and data inside apps like chat and streaming apps, can grow quietly. For Safari, go to Settings > Apps > Safari > Advanced > Website Data. Our guide to clearing cache on iPhone covers Safari, Chrome, and apps with their own clear-cache options, and what each one signs you out of.

Check the Files app too. Safari downloads and files saved “On My iPhone” count toward the Apps category.

5. Downloaded music, podcasts, and videos

• Music: go to Settings > Apps > Music > Downloaded Music, tap Edit, and remove artists or all songs. Turning on Optimize Storage in the same settings lets iPhone remove music you haven’t played in a while when space runs low.
• Podcasts: in the Podcasts app, open Library > Downloaded, tap the More button, and tap Remove All Downloads. To keep fewer episodes going forward, set Settings > Apps > Podcasts > Automatically Download to a smaller number.
• Videos: remove downloads you’ve already watched in the TV app and other streaming apps.

What’s using space, and the safe fix

Category	How big it gets	Safe fix
Photos and videos	Often the largest; video grows fastest	Delete or merge, move to other storage, then empty Recently Deleted
Apps and games	A handful of large apps can take several GB each	Offload to keep data, or delete apps you’re done with
Messages	Grows with years of attachments	Delete attachments; set Keep Messages to 1 Year
Music, podcasts, videos	Depends entirely on downloads	Remove downloads; turn on Optimize Storage for Music
Safari and app data	Usually smaller; rebuilds with use	Clear website data; use an app’s own clear-cache option if it has one
System Data	Varies and rises and falls on its own	Leave it; iOS clears caches when it needs room

These are rough ranges, not Apple figures. The bar in iPhone Storage is the only number that tells you what applies to your phone.

Why is my iPhone storage full when I have iCloud?

Because iCloud storage and iPhone storage are two separate pools. Apple’s explainer on the difference between iCloud storage and device storage puts it plainly: device storage is the fixed amount on your iPhone, and iCloud is space in the cloud.

An iCloud backup is a copy of what’s on your phone. It protects your data, but it doesn’t remove anything from the device, so a backup alone never frees space.

What does help is iCloud Photos with Optimize iPhone Storage. With it on, full-resolution originals live in iCloud and smaller versions stay on your iPhone. To check, go to Settings, tap your name, tap iCloud > Photos > iPhone Storage, and make sure Optimize iPhone Storage is selected rather than Download and Keep Originals. Apple’s guide to backing up and syncing photos with iCloud covers the setting.

Two catches:

• If iCloud is full, syncing stops, and new photos stay on the phone at full size. Our guide to iCloud storage plans covers your options.
• Optimized photos still take some space, because the smaller versions live on the phone.

Why is my storage still full after deleting photos?

There are three usual reasons.

1. They’re in Recently Deleted. Photos stay there for 30 days and keep using space. Empty it as described above.
2. System Data moved. This category covers things like caches, logs, Siri voices, fonts, dictionaries, the Spotlight index, and the Keychain. Apple says your iPhone removes cached and temporary files on its own when it needs more space, which is why the figure rises and falls. You can’t delete it directly. Our explainer on what System Data means covers both Mac and iPhone.
3. The numbers haven’t caught up. Apple notes that available storage can take a moment to update after you delete an app, and the iPhone Storage screen recalculates each time you open it. After a big cleanup, close Settings and check again a little later.

When cleanup helps, and when it doesn’t

Clearing space works well when one or two categories are clearly oversized: a photo library full of video, a few huge games, or years of chat attachments. Work through those and you’ll usually get several gigabytes back.

It helps less when the phone is small and full of things you actually use. Then the lasting fix is moving photos and videos off the phone, to iCloud Photos with Optimize iPhone Storage or to another service like BlueHammer Drive, rather than deleting a little more each month.

Some things no cleanup will touch. No app, ours included, can clear System Data or other apps’ caches on iPhone; iOS manages those itself. Back up before you delete anything you can’t replace, and remember that with iCloud Photos on, a delete on the phone is a delete everywhere.