By: Bryan Tropeano
If your iPhone has been feeling sluggish, apps aren’t loading properly, or Safari is taking forever to open a website, the issue could be your cache. Knowing how to clear cache on iPhone is one of the easiest ways to speed up performance, free up storage, and protect your privacy. In this guide, we’ll walk through everything you need to know—step by step.
What Is Cache and Why Does It Matter?
Cache is temporary data stored by apps and websites to help them load faster the next time you use them. For example, Safari might save image files or site data so pages open more quickly. Similarly, apps like Instagram or YouTube save temporary files in the background to keep things running smoothly.
But over time, these cached files can pile up and start doing more harm than good. That’s when learning how to clear cache on iPhone becomes crucial.
Common Problems Caused by Cache Buildup
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Slower app performance
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Crashing or freezing
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Low storage warnings
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Outdated web content being shown
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Compromised privacy if device is shared
Fortunately, there are multiple ways to clear cache on your iPhone—depending on the app or function.
1. How to Clear Safari Cache on iPhone
Safari is Apple’s default browser, and its cache can take up a surprising amount of space.
Here’s how to clear it:
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Open Settings
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Scroll down and tap Safari
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Tap Clear History and Website Data
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Confirm your choice
This will delete your browsing history, cookies, and other cached data. You’ll be signed out of most websites, so make sure you remember your passwords.
Tip: Do this regularly if you care about protecting your browsing activity. It’s also one of our top Online privacy tips.
Want more info? Follow Apple’s instructions for clearing Safari cache for extra clarity.
2. How to Clear App Cache on iPhone (Manually)
Unlike Android, iPhones don’t have a universal “Clear Cache” button for third-party apps. But there are a few effective workarounds.
Option 1: Offload Unused Apps
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Go to Settings > General > iPhone Storage
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Find the app you want to clear
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Tap Offload App
This removes the app but keeps your documents and data. When you reinstall it, the app starts fresh with less cached data.
Option 2: Delete and Reinstall the App
This is more aggressive but very effective.
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Press and hold the app icon on your home screen
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Select Remove App > Delete App
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Reinstall it from the App Store
Doing this is one of the most reliable methods when figuring out how to clear cache on iPhone, especially for apps like Facebook, TikTok, or Snapchat, which tend to hoard a lot of data.
3. How to Clear Cache in iPhone Settings
While there’s no direct cache-clearing option in iOS settings, reviewing your iPhone Storage section can reveal which apps are consuming the most space.
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Go to Settings > General > iPhone Storage
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Wait for the list to load
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Tap any app to see how much space is used by “Documents & Data”
This can help you decide whether to offload or delete the app entirely, depending on how much cache it’s storing.
4. How to Clear RAM on iPhone
Although not technically “cache,” clearing your iPhone’s RAM can boost performance and temporarily reduce background processes.
For iPhones with Face ID:
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Go to Settings > Accessibility > Touch > AssistiveTouch, then turn it on
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Tap the AssistiveTouch button and go to Device > More > Restart
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Press Volume Up, then Volume Down, and hold the Side button until the screen goes black
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Let go once the Apple logo appears
This soft reset clears active memory, which can help if your phone feels sluggish even after clearing app or browser cache.
5. Clear iMessage and Media Cache
Messaging apps also store a ton of media files. iMessage, in particular, can stockpile years of photos and videos.
To clear iMessage cache:
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Open Settings > Messages > Keep Messages
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Choose 30 Days to automatically delete older messages
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Go back to Settings > General > iPhone Storage > Messages
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Manually delete large attachments from Photos or Videos
This is a lesser-known trick when learning how to clear cache on iPhone, but it can free up gigabytes of space—especially if you send or receive a lot of media.
6. Clear Cache for Streaming and Social Apps
Apps like Netflix, YouTube, Spotify, and Instagram can accumulate a lot of hidden cache.
Some apps (like Spotify) allow you to clear cache within the app settings:
Spotify:
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Go to Settings > Storage > Clear Cache
YouTube:
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There’s no in-app cache cleaner, but deleting/reinstalling is the best method.
Instagram:
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No cache-clear feature; reinstall the app to wipe cached files.
Learning how to clear cache on iPhone for these specific apps can improve streaming performance and reduce buffering issues.
7. When Should You Clear Your iPhone Cache?
Here are a few signs it’s time to take action:
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You’re running low on storage
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Apps are crashing frequently
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Safari is slow or unresponsive
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Your iPhone is running hot or laggy
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You’re concerned about privacy
In general, clearing your cache once every few weeks is a smart habit. It not only improves speed but also helps keep your personal data secure—especially if you share your device or use it for sensitive browsing.
Bonus: Keep an Eye on What’s New in iOS
Apple constantly rolls out updates that make managing storage and performance easier. Be sure to check out the latest New iPhone features from WWDC 2025 to see if any upcoming settings will streamline cache control.
Final Thoughts
Knowing how to clear cache on iPhone is one of the easiest things you can do to speed up your phone, protect your privacy, and free up space. While iOS doesn’t offer a one-tap solution, a combination of browser, app, and message clearing can make a noticeable difference in performance.
Whether you’re trying to make room for new apps or just want your iPhone to run more smoothly, clearing cache regularly is a good habit to build into your digital routine.
About the Author: Bryan Tropeano is a senior producer and a regular reporter for NewsWatch. He lives in Washington D.C. and loves all things Tech.
