Many iPhone users find that after using Facebook for a while, the app becomes increasingly laggy and the storage space it occupies keeps growing. This is typically because Facebook stores a large amount of cache data in the background, including images, video thumbnails, temporary files, and more. While this cache can improve loading speeds, excessive accumulation can take up valuable iPhone storage space and even slow down the app's performance.
If you're also experiencing issues like Facebook taking up too much space, app lag, or slow loading times, clearing the cache is the most direct and effective solution. This article will walk you through how to clear Facebook caches on iPhone, with step-by-step instructions for each method and the scenarios in which they are most useful, helping you quickly free up space and improve performance.

The Facebook app itself offers some cache-clearing features, primarily for deleting browser history, cookies, and website data. This is the simplest method and the one officially recommended by Facebook.
How do I clear the cache on Facebook on my iPhone? Here are the steps:
Step 1. Open the Facebook app on your iPhone.
Step 2. Tap the "menu" icon (three horizontal lines) in the top right corner.
Step 3. Scroll down and find "Settings & privacy", then tap "Settings".
Step 4. In the settings page, find "Browser".
Step 5. Tap "Clear" next to "Cookies and cache", then confirm.

If you want to free up the most space, the most thorough method is to delete and reinstall Facebook. This will remove all caches and temporary files.
Here is how to clear Facebook cache on iPhone's Settings:
Step 1. Open "Settings" > "General" > "iPhone Storage". (iPhone storage not loading?)
Step 2. Find and tap "Facebook".
Step 3. Select "Delete App". (Can't delete the app on your iPhone?)
Step 4. Go to the App Store and download Facebook again.
Step5 . Log in to your account.
You can also press and hold the Facebook icon on the home screen, tap "Remove App" > "Delete App", then go to the App Store, search for Facebook, and reinstall it.

Want to completely, quickly, and safely clean your Facebook cache and free up phone space? The third-party cleaning tool, Coolmuster iOS Cleaner, is a more efficient solution. Coolmuster iOS Cleaner is a professional iPhone/iPad cleaning tool that can scan various junk data on your device, including Facebook cache, temporary files, crash logs, app caches, and more. With just one click, the cleaning process is completed.
Highlights of Coolmuster iOS Cleaner:
How do I clear the cache on Facebook on my iPhone? Here are the steps:
01Please launch the Facebook cache cleaner on your Mac after installation, then connect your iPhone to the computer with a USB cable. This program will automatically detect your device. Select the first mode to start cleaning.

02Then please select the file types that you want to clear. For cleaning Facebook caches, please check "App Caches" (and other file types) and click "Start Scan" to check the details.

03After a quick scan, you can see how much the app caches take up your iPhone storage. Then select the file types for deletion. To clear Facebook caches, please check "App Caches" (and other file types you want to clean) and click the "Clean" button to remove Facebook caches from your iPhone without reinstalling the Facebook app.

Cleaning the Facebook cache is an effective way to improve iPhone performance and free up storage space. Whether you choose to clear it through the Facebook app settings, iPhone system settings, or use a professional tool, it can help your device run more smoothly.
However, if you want to clear all Facebook caches at once and maximize space, we highly recommend using Coolmuster iOS Cleaner. You can easily clear the Facebook cache on your iPhone without needing to uninstall the Facebook app. The process is simple, and the cleaning is thorough, making it perfect for users who want to quickly boost iPhone performance.
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