How to Fix iPhone Storage Almost Full

Does your iPhone say storage is almost full in the Settings, but there is plenty of space available? If yes, then the iOS 15 update might be causing this issue. Yes, iOS 15 has just started rolling out to the compatible iPhones; a new bug is reported by some users where iPhone keeps saying storage is almost full, but it's not. Apple has not acknowledged this issue so far, but there are some common troubleshooting tips that can help you tackle this issue without much hassle.

So, read the following article and get your hands on any of the troubleshooting tips as per your requirements in order to prevent the iPhone storage full issue. But before moving forward, let's get a detailed insight into the issue.

iphone storage almost full

Part 1: iPhone Storage Almost Full after iOS 15 Update

Some iPhone users who have recently upgraded to iOS 15 see the "iPhone storage almost full" message on their iPhone regardless of storage space used, and it cannot be dismissed. This bug affects the iOS experience of many users and needs to be fixed immediately. Attempts to delete the data on the iOS device have also failed to remove the message, and therefore users are waiting for a fix from Apple.

So, if you're facing the same issue and hunting for what to do when iPhone storage is full, then you have two options. You can either downgrade from iOS 15 to iOS 14.8 or try fixing the issue by following the effective methods below. It's up to you which method you opt for. Let's start with downgrading from iOS 15 to iOS 14.8 first!

How to Downgrade from iOS 15 to iOS 14.8?

According to, iOS 14.8 is still being signed by Apple, and therefore the users who want to fix iPhone storage full but nothing on phone bug can downgrade to iOS 14.8 but make sure to Turn off Find My iPhone via Settings and download the iOS 14.8 firmware file for your iPhone. Here's how it works!!

NOTE: Once Apple stops signing the iOS 14, you will be unable to downgrade from iOS 15 to iOS 14.8.
  1. Step 1: Connect your iPhone running iOS 15 to your PC.
  2. Step 2: Open a Finder window and choose your iOS device from the sidebar; on Windows, open iTunes. In case you are connecting your iPhone to your Mac for the first time, you will have to accept the prompt to trust the computer on the iDevice.
  3. Step 3: Hold the Shift key in Windows or Alt/Option key on the Mac on your keyboard and tap on the "Restore iPhone…." button.
  4. Step 4: Choose the iOS 14.8 IPSW file that you have downloaded earlier and click on the "Restore and Update" button to continue.
  5. Step 5: In the next screen, you'll find the information about iOS 14.8 update. Tap on the "Next" button and then the "Agree" button to continue.
  6. Step 6: Finder or iTunes will now verify the software and install it on your iPhone. This process will take around 10-15 minutes.
  7. Step 7: Once the process is completed, your iPhone will automatically boot back into iOS 14.8, and you will see the white "Hello" setup screen. Follow the setup process, and in case you have the backup of iOS 14.8, restore it during the setup process.

You have successfully downgraded from iOS 15 to iOS 14.8 in just a few simple steps. You can now check if the issue persists. If no, then your iPhone is good to go, but if you are still facing the same issue or want to tackle the issue without downgrading to iOS 14.8, follow the methods below to solve the issue.

Related read:

Part 2: 8 Ways to Fix iPhone Storage Full

Here's a list of 8 proven ways to help you with how to free up iPhone storage space without much hassle.

1. Keep iPhone Photos in iCloud Photo Library

Videos and photos take up a lot of storage space in your iPhone. Therefore, you can use the iCloud Photo Library that allows you to store all the pictures by freeing up some storage space in your iPhone. Using the iCloud Photo Library to solve iPhone storage keeps getting full issue enables you to make some space available by uploading the older pictures on iCloud Photo Library. So, here's how to do it:

  1. Step 1: Click on "Settings" and select "Photos and Camera."
  2. Step 2: Here, turn on "iCloud Photo Library."
  3. Step 3: Ensure to select the option of "Optimize iPhone Storage" on your iOS device.

iphone storage almost full

That's all! By following this way, the storage space in your iPhone will be free, and you can easily re-download the photos whenever you wish.

2. Delete Unused Apps

Like every Smartphone user, you might have downloaded a handful of applications on your iOS device, but out of these applications, some might be useless from your point of view. So, removing such unused applications can help you fix iPhone keeps saying storage almost full issue easily.

To delete an unused application, press and hold the app until it starts jiggling and the "X" icon appears. Later, press the "X" icon in the upper left-hand corner of the app and delete the unused application within just a few minutes.

3. Delete Unused Pre-installed Apps

Some apps that you've downloaded on your iOS device may be for a single-use, and then you might have forgotten to delete those unused apps. So, deleting the unused apps by following the steps below will free up some space in your iOS device:

  1. Step 1: Press on the application's icon on the home screen until it starts to jiggle.
  2. Step 2: Tap on "X" on the left side of the icon to delete the specific unused application.

    delete pre-installed apps on iphone to fix storage full

That's all! You have successfully removed the unused app on your iPhone. You can now check if this frees up some space in your iPhone. If no, then move to the next solution.

4. Find out Which Apps Are eating Up the Most Storage

If you are in a dilemma regarding why does my phone keeps saying storage full, then you can figure out which applications are eating up the most storage on your iOS device. Some applications eat a lot of space, and you might not have an idea about how much space a particular app is taking. Just go to Settings > General > [Device] Storage.

check which app is taking more storage space

If an unused application is utilizing more space, simply delete it as it is no longer needed. If a particular small app takes up a lot of space, you can free up space by deleting the unwanted data linked with that application.

5. Delete Old Messages

When you are confused regarding "my iPhone says I have no storage, but I deleted everything," then you might have forgotten to delete the old messages. Text conversations are considered to be harmless in terms of storage space consumption, and therefore, you must delete them by telling the iOS to purge messages after a certain period, say 30 days, for instance.

  1. Step 1: Go to "Settings"> "Messages."
  2. Step 2: Under "Messages," go to "Message History"> "Keep Messages" and select a suitable time frame.

    delete old conversations on iPhone to free up storage

Finally, the old conversations will get deleted automatically. You can now check if some storage space is available or not.

6. Clear Out Browsing History

If none of the above-stated solutions helped you with "how to clear up iPhone storage," then trying fixing the issue by clearing out the browsing history. Sometimes, the browsing history and other data are saved by the internet browsers to offer a better internet experience to the users. So, if you use a browser regularly, then these additional files will take a considerable amount of storage space on your iPhone, and this space needs to be cleared. Just note that clearing browsing history and data will close all the tabs. Therefore make sure to bookmark any tab if needed before clearing the browsing history.

Here's how to clear out browsing history on iPhone:

  1. Step 1: Go to the "Settings" app and tap on Safar or other browser that you use frequently.
  2. Step 2: Click on "Clear History and Website Data."

    clear browsing history to free up iPhone storage

7. Delete Offline Data

iPhone saves the browser reading list and website data for offering convenient viewing to the users when they are not connected to an internet connection. This reading list for sure takes up pretty much storage space on your iOS device, and you can clear this space by following the steps below:

  1. Step 1: Navigate to the "Settings" app and click on "General."
  2. Step 2: Click on "Manage Storage" and then tap on the name of the browser like "Safari."
  3. Step 3: Here, click on "Offline Reading List" and hit the "Delete" button.

    remove offline data on Safari

It is effortless and quick to delete the offline data from your iOS device. If this method didn't solve your issue, then switch to the following method that suggests using an excellent third-party application to transfer large files to a computer and fix my iPhone says storage is full, but it's no issue.

8. Transfer Large Files to Computer

Ever happened that your iOS device suffered a storage problem? Yes, this has been now a common problem with iOS 15 updates, and also we all like to collect pictures and videos on our phones now and due to which mobile phones usually complain storage issues. But our UltFone has come up with a solution to resolve this issue by briefing the process of transferring all your data from your iPhone to your computer.

UltFone iOS Data Manager is capable of backing up and restoring, transferring, and managing all of your data on your iOS devices. When working with iOS data, you will never have to worry about tiresome processes. Unlike iTunes and iCloud, this iOS Data Manager tool allows you to see prior backups before restoring them, allowing you to pick or fully restore your desired files without reformatting your existing information.

Here's a guide on how to use UltFone iOS Data Manager to transfer files between iOS device and computer.

  • Step 1 Download and install the UltFone iOS Data Manager tool on your PC or Mac.

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  • Step 2 Launch the tool and connect your iPhone to the PC via a USB cable.

    ultfone iphone transfer software
  • Step 3 At the home screen of UltFone iOS Data Manager, navigate to the "Manage" tab at the top and choose the photo(s) that you wish to transfer.

    select photos to export

    If the video files take much storage, you can transfer large videos from iPhone to computer.

    transfer videos from iphone to computer
  • Step 4 Finally, hit the "Export" button to transfer photos or videos from iPhone to computer.

After transferring large files to computer, you can then delete them from iPhone to get more storage on iPhone 12/11/XR/X.

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The Bottom Line

Running out of storage space in your iOS device or iPhone storage almost full message is really very frustrating until fixed. You can solve your full storage space issue in your iOS device by opting for any of the methods above. But if you are looking for a quick fix, then transferring files from iPhone to PC is the best option, and for this, you can use UltFone iOS Data Manager. This amazing iOS Data Manager tool works flawlessly to transfer all sorts of data from iPhone to PC in just a few minutes. So, install the UltFone iOS Data Manager tool now and use your iPhone without any storage space hassle.

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