Where to find your iPhone's storage information
Open Settings, then tap General, then iPhone Storage. The top of the screen shows your total storage capacity and how much space you have left. Below that, you'll see a colored bar that breaks down what's using your storage — apps, photos, system files, and other data each get their own section.
The list below the bar shows every app on your phone ranked by size, from largest to smallest. This is the fastest way to spot which apps are taking up the most room. Tap any app to see more details about what's stored inside it.
Key Takeaways
- Your storage information is in Settings > General > iPhone Storage, and it updates in real time as you add or remove apps and photos.
- The colored bar at the top shows at a glance how much space is used and how much is free, broken down by category.
- Apps are listed by size, so you can quickly identify which ones are using the most storage and decide whether to delete them.
- Offloading an app removes it but keeps your data, while deleting removes both the app and its data permanently.
Understanding the storage breakdown
The colored bar shows four categories. Apps includes the app itself and any data it stores locally on your phone. Photos and Videos is self-explanatory. Other includes things like cached files, temporary data, and system files that apps create while running. System is the iOS operating system itself, which typically takes 10 to 15 GB depending on your iPhone model and iOS version.
If "Other" is taking up a large amount of space, it usually means cached data has built up over time. This often clears itself when you restart your phone or when iOS updates, but you can also free some of it by deleting and reinstalling apps that use a lot of cache.
What the app list tells you
Each app entry shows the app name, its size, and the date you last used it. The size shown includes the app itself plus any data stored inside it — for example, a messaging app's size includes all your conversations and media. Tap an app to see two options: Offload App or Delete App.
Offload App removes the app from your phone but keeps your data. If you reinstall it later, your settings and information come back. This is useful if you want to free up space but might use the app again. Delete App removes both the app and all its data permanently. You can always reinstall it later from the App Store, but your saved data inside that app will be gone.
Freeing up storage space
Start by looking at the largest apps in your list. Photos and video apps, games, and social media apps often take the most room. If you don't use an app regularly, offloading it is a quick way to reclaim several gigabytes. For apps you do use, check whether they have a "Clear Cache" option in their settings — this removes temporary files without deleting the app itself.
Photos and videos are usually the biggest storage hog on most iPhones. If you're running low on space, go to Settings > General > iPhone Storage and look for the "Photos" entry. You can also go to Settings > Photos and turn on iCloud Photos to store your photos in the cloud instead of on your phone, though this requires an iCloud subscription for storage beyond 5 GB.
How much storage you actually have
The number shown at the top of iPhone Storage is your usable space, not your total capacity. If you bought a 128 GB iPhone, the actual usable space is around 110 to 115 GB because the operating system and system files take up the rest. A 256 GB phone has roughly 240 GB usable, and a 512 GB phone has around 480 GB usable.
Your iPhone reserves a small amount of free space for system operations — typically 1 to 2 GB. If you get very close to full capacity, your phone may slow down or have trouble installing updates. It's a good idea to keep at least 5 to 10 GB free for smooth performance.
Checking storage on older iPhones
If you have an iPhone 5s, 6, or 6s, the steps are the same: Settings > General > iPhone Storage. The layout and information shown are identical on all iPhone models running iOS 12 or later. If you're running an older version of iOS, you may see slightly different wording, but the storage information is in the same location.
If your iPhone is very old and running iOS 11 or earlier, go to Settings > General > About instead. You'll see "Available" and "Capacity" listed, but you won't get the detailed app-by-app breakdown. In that case, you can still see which apps are largest by going to Settings > General > iPhone Storage (if available on your version) or by checking individual app sizes in the App Store.
Frequently Asked Questions
Why does my iPhone say I have less storage than I paid for?
The operating system and system files take up 10 to 15 GB of your total capacity. A 128 GB iPhone has roughly 110 to 115 GB of usable space. This is normal and expected on all iPhones.
What is "Other" storage and how do I reduce it?
Other includes cached files, temporary data, and system files created by apps. It often clears itself when you restart your phone or update iOS. If it's very large, try deleting and reinstalling apps that use a lot of cache, like social media or streaming apps.
Will offloading an app delete my data?
No. Offloading removes the app but keeps your data. When you reinstall it, your settings and information return. Only "Delete App" removes both the app and its data permanently.
How much free space should I keep on my iPhone?
Keep at least 5 to 10 GB free for smooth performance and to allow room for iOS updates. If you get very close to full capacity, your phone may slow down or have trouble installing updates.
Can I see storage information on my iPhone without going into Settings?
No. The detailed storage breakdown is only available in Settings > General > iPhone Storage. You can't view it from the home screen or Control Center.