How to Clear Cache on Android & iPhone in 2026 (Free Up Space Fast)

Is your phone running slow, running out of storage, or showing glitches in apps? Clearing the cache is one of the quickest, safest fixes — and it takes just a few minutes. This guide shows how to clear cache on Android and iPhone in 2026, what cache actually is, and what you should (and should not) delete.

What Is Cache, and Is It Safe to Clear?

Cache is temporary data apps store to load faster — images, thumbnails, and files they have already downloaded. Over time it piles up and can eat gigabytes of storage or cause an app to misbehave.

Clearing cache is safe: it does not delete your photos, messages, accounts, or app settings. The app simply rebuilds its temporary files the next time you open it, which may make the first launch slightly slower. Clearing app data, by contrast, resets the app completely — do not confuse the two.

How to Clear Cache on Android

Clear cache for one app

1. Open Settings, then tap Apps (or Apps & notifications).
2. Tap the app that is misbehaving or using lots of storage — browsers and social apps are the usual suspects.
3. Tap Storage & cache, then tap Clear Cache.
4. Reopen the app and check whether the problem is fixed.

On Samsung phones the path is almost identical: Settings > Apps > choose the app > Storage > Clear Cache.

Clear cache for your browser

For Chrome on Android, open Chrome, tap the three-dot menu, go to History > Clear browsing data, choose a time range, tick "Cached images and files," and tap Clear data. Leave passwords and autofill unticked unless you want to sign in everywhere again.

Clear cache for all apps at once

Android no longer offers a single button to clear every app's cache. Instead, use your phone's built-in storage cleaner (Settings > Storage, or the Device Care tool on Samsung) to remove junk files, or clear the biggest apps one by one. Third-party "cleaner" apps are rarely worth installing — most just show ads and duplicate what your phone already does.

How to Clear Cache on iPhone

iPhones handle cache differently: there is no system-wide clear-cache button. Here are the methods that actually work.

Clear Safari cache

1. Open Settings > Apps > Safari (on older iOS, Settings > Safari).
2. Tap Clear History and Website Data.
3. Confirm. This removes browsing history, cookies, and cached files for Safari.

Clear cache inside individual apps

Many iPhone apps — including Chrome, Telegram, and TikTok — have their own cache controls inside the app's settings. Look for "Storage," "Data usage," or "Clear cache" in the app's settings menu and use it there.

Offload an app instead of deleting it

If an app is taking huge storage, go to Settings > General > iPhone Storage, tap the app, and choose Offload App. This removes the app itself but keeps your documents and data, freeing space without losing anything. Reinstalling restores it exactly as it was.

As a last resort, deleting and reinstalling an app clears all its cache — but make sure your data is backed up or synced to an account first.

Clearing Cache in Popular Apps

Some apps build up cache faster than others. Social media apps like TikTok, Instagram, and Facebook store endless thumbnails and videos, so check them first in Settings > Apps > Storage. On iPhone, TikTok and Telegram both offer a cache-clearing option inside their own settings menus — use those before resorting to reinstalling. Browsers are another big one: if websites look outdated or fail to load new content, clearing the browser cache usually fixes it instantly. Messaging apps like WhatsApp also store media cache, but be careful to distinguish cache from your actual chats and downloaded media, which you may want to keep.

How Often Should You Clear Cache?

For most people, once every month or two is plenty, or whenever an app crashes, freezes, or refuses to load new content. Clearing cache daily is unnecessary and can actually make apps slightly slower, since they must rebuild temporary files each time.

Cache vs. Storage: Other Ways to Free Up Space

If clearing cache is not enough, try these next steps: delete downloaded files you no longer need, remove old screenshots and duplicate photos, uninstall apps you haven't opened in months, and move photos and videos to cloud backup. Together these usually free far more space than cache alone.

Frequently Asked Questions

Will clearing cache delete my photos or chats?

No. Clearing cache only removes temporary files. Your photos, chats, and login sessions stay intact. Clearing data or storage, however, can reset an app — so always tap "Clear Cache," not "Clear Data," unless you mean to start fresh.

Why does cache come back after I clear it?

That is normal. Apps rebuild cache as you use them so they load faster. If an app's cache grows to several gigabytes again quickly, that app may have a bug — update it, or report the issue to its developer.

Does clearing cache speed up my phone?

It can fix a misbehaving app and free storage, which helps a nearly full phone run better. But if your phone is slow overall, low RAM or an aging battery is more likely the cause — cache alone will not fix that.

Is it safe to use cache-cleaner apps?

Mostly unnecessary. Built-in Android and iPhone tools handle cache safely. Many free cleaner apps show ads, request excessive permissions, or delete files you wanted. Stick to your phone's own settings.

Conclusion

Clearing cache is a quick, safe first fix for slow apps, glitches, and storage pressure. On Android, use Settings > Apps > Storage > Clear Cache; on iPhone, clear Safari data, use in-app cache controls, or offload heavy apps. Do it monthly, not daily, and pair it with a photo and app cleanup for real results. Found this guide helpful? Explore more phone tips on InfoVexa.