Where to find your iPhone storage information

Open Settings on your iPhone, then tap General. Scroll down and select iPhone Storage. The screen shows a bar at the top displaying how much space you are using and how much remains free. Below that is a list of every app on your phone, ranked by size from largest to smallest, so you can see at a glance which apps are taking up the most room.

This same screen tells you how much data each app has stored — the number under the app name includes both the app itself and any files it has saved, like photos in a messaging app or cached videos. If an app shows 500 MB but you only use it once a month, that is a place to start if you need to free up space.

Key Takeaways

  • Your iPhone storage breakdown lives in Settings > General > iPhone Storage, where you can see the total used and free space at the top.
  • Apps are listed by size, so the largest ones appear first — this helps you spot which apps are worth deleting or offloading if you need space.
  • The number shown for each app includes both the app and its stored data, so a messaging app might be large because of cached photos and videos, not the app itself.
  • You can offload an app to free up its space while keeping your data, or delete it entirely — offloading is useful if you want to reinstall it later without losing settings.
  • Photos and videos are usually the largest storage users on most iPhones, so checking your Photos app size is often the fastest way to reclaim space.

Understanding the storage bar and what each color means

The colored bar at the top of iPhone Storage shows you at a glance how your space is divided. Blue represents apps and their data. Green is your photos and videos. Red is system files and other data that iOS needs to run. Gray is free space. If the gray section is very small or gone, your phone is running low on storage and may slow down or refuse to install updates.

The total number shown — for example, "128 GB" or "256 GB" — is your phone's total capacity. The number next to it, like "87 GB used", tells you how much of that capacity is currently occupied. Subtract that from your total to find your free space. If you have 128 GB total and 87 GB used, you have about 41 GB free.

Why Photos and Videos take up the most space

A single high-resolution photo from your iPhone camera is typically 3 to 5 MB. A one-minute video shot in standard quality is 50 to 100 MB. If you take 50 photos a week, that is 150 to 250 MB per week, or roughly 8 GB per year. Most people do not realize how quickly photos and videos accumulate, especially if you take multiple shots of the same moment or record video frequently.

Your Photos app also stores duplicates and deleted photos in a "Recently Deleted" folder for 30 days before permanently removing them. If you delete a photo by mistake, you can recover it during that window. However, if you are trying to free up space, permanently emptying the Recently Deleted folder can recover several gigabytes when ready. Open Photos, tap Albums at the bottom, scroll down to Recently Deleted, tap Select, then Delete All.

How to offload versus delete apps

When you offload an app, iOS removes the app itself but keeps your data and settings. The next time you want to use it, you reinstall it from the App Store and your saved data reappears. This is useful for apps you use occasionally but do not need right now. When you delete an app entirely, both the app and its data are removed — reinstalling it later means starting from scratch.

To offload an app, go to Settings > General > iPhone Storage, find the app in the list, tap it, then tap Offload App. A dialog appears asking you to confirm. To delete an app entirely, tap the same app and select Delete App instead. You can also long-press any app on your home screen and choose Remove App, then select Delete App from the menu that appears.

Checking storage for specific apps and their cached data

Some apps store far more data than their size suggests. A messaging app might show 2 GB because it has cached thousands of photos and videos from conversations. A streaming app might store downloaded episodes or movies. To see the breakdown for a single app, go to Settings > General > iPhone Storage, tap the app name, and look at the size listed. Unfortunately, iOS does not break down exactly what data is stored inside each app — you only see the total.

If an app is using too much space, you have two choices: offload and reinstall it (which clears all cached data), or open the app itself and look for a settings menu to clear cache or delete downloads. Many apps like Netflix, Spotify, and messaging platforms have their own storage management inside the app. Open the app, look for Settings or Storage, and you may find an option to clear cache or remove downloaded content.

When your iPhone is almost full and what to do

If your free space drops below 1 GB, your iPhone will warn you and may refuse to install updates or take photos. iOS needs some free space to function properly. The fastest ways to reclaim space are deleting old photos and videos, offloading large apps you do not use regularly, and emptying the Recently Deleted folder in Photos.

If you have already done those things and still need more space, check your iCloud backup settings. Go to Settings > [Your Name] > iCloud > Manage Storage. If you are paying for iCloud storage but not using it, you can delete old backups to free up space. You can also turn off iCloud backup for apps you do not need backed up, which frees up both iCloud space and sometimes local iPhone storage. Be cautious with this step — if you turn off backup for an app and then delete the app, you lose its data permanently.

How to monitor storage over time

Check your iPhone Storage screen once a month to watch for apps or categories growing unexpectedly. If an app you barely use suddenly jumped from 100 MB to 500 MB, it may be caching data in the background. If your photos jumped by several gigabytes, you may have recorded video without realizing it or downloaded a large file.

You can also enable storage warnings in Settings. Go to Settings > General > iPhone Storage and look for any notification settings at the top. Some iPhone models show a notification when storage is running low. Paying attention to these warnings before you hit the limit gives you time to delete or offload apps without your phone slowing down or refusing updates.

Frequently Asked Questions

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

iOS itself, system files, and cached data from apps account for several gigabytes. The Photos app also counts videos and images in your library separately from the app size. Additionally, some apps cache data in the background that does not show up in their listed size. If the numbers do not match what you expect, the difference is usually system files and cache.

Can I move apps to external storage like I can on a computer?

No. iPhones do not support external storage or memory cards. Your only options are to offload apps, delete them, or delete their data. If you need more permanent storage for photos and videos, you can upload them to iCloud, Google Photos, or another cloud service, then delete them from your phone.

What happens if I offload an app and then delete it from the App Store?

If an app is removed from the App Store, you cannot reinstall it. However, offloading it first does not change this — the app is still gone from the store. Offloading is only useful if the app is still available for read. If you are concerned about losing an app, do not offload it.

Does clearing my Recently Deleted photos folder really free up space?

Yes. Photos in the Recently Deleted folder still occupy storage space on your phone. Permanently deleting them removes that data entirely. If you have thousands of photos in Recently Deleted, clearing it can free up several gigabytes when ready.

Why is my iPhone storage full even though I have not downloaded much?

System files, app caches, and photos or videos you may have forgotten about are the most common culprits. Open iPhone Storage and look at the largest items — usually Photos, Messages, or large apps. Also check if you have a lot of videos in your camera roll or downloads folder that you do not remember saving.