Where to find your storage information on iPhone

Open Settings, then tap General, then tap iPhone Storage. This screen shows your total storage capacity at the top and a colored bar that breaks down what is using space. Below that, you see a list of every app on your phone, ranked by size from largest to smallest, along with how much space each one takes up.

The storage bar uses different colors for different types of content. Apps appear in one color, photos and videos in another, system files in another. Hover over the bar itself to see which color represents which category. This gives you a quick visual sense of what is consuming the most space before you dig into individual apps.

If your phone is almost full, you will see a warning at the top of the iPhone Storage screen. The phone reserves some space for system operations, so you cannot use every gigabyte shown in your total capacity.

Key Takeaways

  • Your iPhone storage breakdown is in Settings > General > iPhone Storage, showing total capacity and what each app uses.
  • The colored bar at the top shows at a glance whether photos, apps, or system files are taking up the most room.
  • Apps are listed by size, so you can see immediately which ones are hogging storage and delete or offload the largest ones first.
  • Offloading an app removes it from your phone but keeps your data, while deleting it removes both the app and its data.
  • Photos and videos stored in iCloud do not count toward your phone's storage if you have iCloud Photos turned on.

Understanding the storage breakdown

The iPhone Storage screen shows you four main categories. Apps take up space, and the list shows each one individually so you can see which are the biggest offenders. Photos and videos are usually the largest category on most phones, especially if you take a lot of pictures or record video. System files — the iOS operating system itself, cached data, and temporary files — take up a fixed amount that varies by iOS version.

Documents and data is a catch-all category that includes files stored in apps like Notes, Mail, and iCloud Drive, plus any offline content you have downloaded. If this category is large, it usually means you have a lot of email with attachments or you have downloaded many documents for offline reading.

Tap any app in the list to see more detail. For large apps like games or social media, you can see the app size itself plus the size of its data — the photos, messages, or other content stored inside it. This matters because deleting an app removes both, but offloading removes only the app, leaving the data behind so you can reinstall it later without losing anything.

How to delete apps and free up space

From the iPhone Storage screen, tap any app you want to remove. You will see two options: Offload App and Delete App. Offload App removes the app from your phone but keeps all your data — your saved games, messages within the app, login information. When you reinstall it later, everything is still there. This is useful for apps you use occasionally but do not need right now.

Delete App removes both the app and all its data permanently. You cannot recover the data afterward, so use this only for apps you are certain you will not need. If you delete an app by mistake, you can reinstall it from the App Store, but any data stored only on your phone will be gone.

You can also delete apps the traditional way: press and hold the app icon on your home screen, tap Remove App, then tap Delete App. This does the same thing as deleting from Settings, just from a different location.

Reducing photo and video storage

Photos and videos are usually the biggest space hog on an iPhone. If you have iCloud Photos turned on, your full-resolution photos and videos are stored in iCloud, and your phone keeps lower-resolution versions to save space. You can see this setting in Settings > Photos. If iCloud Photos is off, every photo and video you take lives on your phone at full size.

To delete photos manually, open the Photos app, tap Select, then tap the photos or videos you want to remove, then tap Delete. Deleted photos go to the Recently Deleted album for 30 days before they are permanently erased, so you have time to change your mind.

If you want to keep your photos but free up phone storage, turn on iCloud Photos in Settings > [Your Name] > iCloud > Photos. This uploads everything to iCloud and stores only optimized versions on your phone. You need enough iCloud storage for this — Apple gives you 5 GB free, and you can buy more if you need it.

Clearing cached data and temporary files

Apps accumulate cached data over time — temporary files they store to load faster next time you open them. You cannot see individual cached files in iPhone Storage, but you can clear them by offloading and reinstalling an app. This removes the app and all its cached data, then you reinstall it fresh.

For Mail specifically, you can reduce storage by deleting old emails with attachments. Mail stores attachments on your phone even after you have read them. Go to Settings > Mail > Accounts, tap the account, then tap Advanced, then tap Mailbox Behavior. You can set Mail to delete attachments after a certain number of days.

Safari also caches web pages and images. You can clear this in Settings > Safari > Clear History and Website Data. Choose how far back to clear — Last Hour, Today, Last Week, or All Time. This frees up some space, though usually not a huge amount unless you browse heavily.

Monitoring storage over time

Check your iPhone Storage screen once a month to see if any apps are growing unexpectedly. Some apps, like messaging or social media, accumulate data as you use them and can balloon in size if you do not clear them out periodically.

If you find yourself constantly running out of space, consider whether you need iCloud+ — Apple's paid plan that gives you 50 GB, 200 GB, or 2 TB of iCloud storage depending on which tier you choose. This lets you store more photos, videos, and documents in iCloud without filling up your phone. You can see your current iCloud storage in Settings > [Your Name] > iCloud > Manage Storage.

Frequently Asked Questions

Why does my iPhone say I am using more storage than my apps add up to?

System files, cached data, and temporary files account for the difference. iOS itself takes several gigabytes, and each app stores temporary data that does not show up as a separate line item. Offloading and reinstalling your largest apps can clear out old cached data and sometimes free up a few gigabytes.

If I offload an app, do I lose my data?

No. Offloading removes only the app itself, not your data. When you reinstall it, your saved games, messages, settings, and other data are still there. The app will re-download from the App Store, so you need an internet connection.

Can I see how much iCloud storage I am using?

Yes. Go to Settings > [Your Name] > iCloud > Manage Storage. This shows your total iCloud capacity and what is using space — photos, backups, Mail, documents, and other files. Photos stored in iCloud do not count toward your phone's storage, only toward your iCloud storage.

What happens if my phone storage is completely full?

Your phone will slow down and you will not be able to take photos, install updates, or download new apps. iOS reserves some space for critical operations, so you will get a warning before you hit absolute zero. Delete apps or photos to free up space so your phone can function normally.

Does turning off iCloud Photos delete my photos?

No. If you turn off iCloud Photos, your photos stay on your phone and in iCloud — they just stop syncing between the two. Photos already in iCloud remain there. You can turn iCloud Photos back on anytime without losing anything.