What's the best way to clear iPhone cache?

My iPhone seems to be running slower lately, and I think clearing the cache might help. I’m not sure how to do it properly. Can someone guide me on how to clear the cache on my iPhone to improve its performance?

OMG, let me tell you, clearing the cache on an iPhone is like trying to explain TikTok trends to your grandma—complicated but necessary. First off, there really isn’t a big red “CLEAR CACHE” button like we all secretly hope for. Apple likes to keep things… mysterious. So here’s what you’ll have to do:

  1. Safari Cache: If you’re using Safari (and not some third-party browser because you’re fancy), go to Settings > Safari > Clear History and Website Data. Boom. Safari should be all clean and fresh like it just got a spa day.

  2. Offload Apps: Some apps hoard space like a squirrel with acorns. Head to Settings > General > iPhone Storage. You’ll see which apps are pigs. Tap on an app and either “Delete App” (ruthless) or “Offload App” (merciful). Offloading keeps the app’s data so you can reinstall later without losing your progress in Candy Crush or whatever.

  3. App-Specific Cache: Some apps, like Facebook or Instagram, think it’s cute to steal GBs of storage. Unfortunately, you’ll usually have to delete and reinstall these to clear their cache because Apple hasn’t blessed us with a simpler way. Yay, us.

  4. Restart Your Phone: When in doubt, turn it off and on again. For some reason, restarting your iPhone flushes out a lot of temporary files.

  5. Storage Check: Scroll through your Settings > General > iPhone Storage. You might notice random “Other” data taking up a chunk of space. Sadly, Apple doesn’t let you specifically clear ‘Other,’ BUT clearing Safari and deleting unused apps helps a bit.

Is that all a little obnoxious? Oh, absolutely. But hey, maybe your iPhone will stop moving at the speed of a potato.

Honestly, clearing cache on an iPhone feels like a wild goose chase sometimes, doesn’t it? I mean, @techchizkid covered the basics pretty well (shoutout to the “mysterious” Apple vibes), but let me throw in a couple of different thoughts here.

First off, before torching apps or wiping Safari clean, ask yourself: Is it really the cache? Slowness could also be due to iOS updates hogging resources or your storage almost full. Check Settings > General > iPhone Storage again and see if you’re running low. Sometimes you just need to delete those absurd 20-minute 4K video clips lying around from last year’s vacation (you’re not Spielberg, be real).

Now, if you’re keen to speed things up without major app assassinations, consider turning off Background App Refresh. Go to Settings > General > Background App Refresh and disable it for apps you barely use. Why is the Domino’s app refreshing in the background? Are they secretly prepping pizzas you didn’t order? No thanks.

Also, pro tip: use Low Data Mode. Even if you don’t care about data, it stops apps from doing unnecessary stuff in the background. You’ll find it in Settings > Mobile Data > Data Mode. This one’s clutch, especially if you hate apps trying to multitask on your behalf.

Lastly, I’m not a fan of the whole “delete and reinstall” solution for app caches like Instagram or TikTok. I’d rather not go through the pain of logging in 500 times afterward. Instead, try seeing if the app itself has a “Clear Cache” in its settings (some third-party apps are way kinder than Apple with these things).

So, yeah, my advice? Start light—turning off things like App Refresh or Low Data Mode—before waging war on apps or their data. And if all else fails: comfort yourself with the reality that Apple’s ecosystem is designed to keep us all just this close to chaos.

Okay, here’s the thing—clearing cache on an iPhone isn’t the magical speed-boost button we all dream of. Yep, Mike and Techchiz covered the basics, but let me toss in a couple of alternative strategies for you to consider. While delving into app or Safari cache is great, have you thought about tackling your iPhone’s system-level performance optimization? Let’s dig into a little troubleshooting mode.


1. Enable “Reduce Motion”

Why let your iPhone perform visual gymnastics if it’s struggling already? Head to Settings > Accessibility > Motion > Reduce Motion and turn that bad boy on. This reduces animations and helps your phone feel a little quicker without clearing a byte of cache.

Pro: Speeds up navigation UI. Con: Less of that buttery smooth Apple feel.


2. Give Location Services a Timeout

Some apps keep pinging your location like they’re your overly attached friend. Go to Settings > Privacy > Location Services and either disable it for apps that don’t need GPS or set them to “While Using the App.” Facebook? Off. A game you downloaded months ago and forgot about? Definitely off.

Pro: Reduces background activity drain.
Con: Navigation apps might nag for re-enabling.


3. Manage iMessages Attachments

Little-known culprit here! Those fun GIFs and videos in iMessages stockpile over time. Crack open Settings > Messages > Photos & Videos Attachments, then start deleting those 3-year-old memes (which were funny, but you won’t miss them).

Pro: Can clear up gigabytes if you’re a serial chatterbox.
Con: Tedious if you’ve got massive conversations.


4. Avoid Third-Party “Cleaner” Apps

You might find apps claiming to clear cache or optimize your phone faster than you can say “snake oil.” Pro-tip: they’re not certified by Apple to dig into the iPhone’s system and may cause more harm than good. Stick with Apple’s own tools.

Pro: Keeps your data secure.
Con: Limited options on how much manual cleaning you need to do.


So yeah, while blending in Mike’s good ol’ “offload apps” with Techchiz’s Low Data Mode suggestion can help, don’t underestimate these minor tweaks. They might not drastically clear cache, but they’ll tidy up the overall workflow quite a bit. And hey, if you really want to nuke the problem? Consider a factory reset (Settings > General > Reset > Erase All Content and Settings). Just back everything up first, unless losing photos doesn’t haunt you at night.

Your move. Which of these ideas makes the most sense? Or are you on Team Delete-and-Reinstall like Techchiz? (Personally, I try to avoid that drama.)