How to Empty App Cache on iPhone | The Real Storage Free-Up

iPhone doesn’t have a universal “clear app cache” button, but you can free up storage by offloading apps, deleting and reinstalling them, or using individual apps’ built-in cache controls.

You’re running low on storage, and “Other” or “Documents & Data” keeps growing. On Android, clearing cache is a one-tap system setting. On iPhone, it’s more manual — Apple only documents a built-in cache-clearing path for Safari. For everything else, the process depends on the app. Here’s which method actually works for each situation and how to avoid deleting data you want to keep.

Can You Clear Cache for Every App at Once?

No. Apple does not provide a system-wide “Clear Cache” toggle that works across all apps. The only app with an official, documented cache-clearing workflow on iPhone is Safari. For third-party apps, you work around this limitation using Offload App, Delete App, or whatever cache controls the app maker included.

That said, the following three methods cover virtually every app on your phone, and none of them require a third-party cleaning tool.

Method 1: Clear Safari’s Cache and Cookies (Browsing Data)

Safari is the one app where Apple provides an official, built-in cache clearing path. It removes stored website data, cookies, and browsing history from the device.

Open Safari, tap the More button (the Aa or menu icon, depending on your iOS version), then tap History. Tap More again in the history panel, then under Clear, choose a Clear Timeframe — the last hour, today, today and yesterday, or all history. Tap Clear History to confirm. If you use Safari profiles, you can clear data from one profile or from All Profiles at once.

After this, websites will reload fresh content and you’ll need to sign back into sites where you saved credentials.

Method 2: Offload or Delete Individual Apps (For All Other Apps)

When an app has no cache button of its own, the iPhone Storage menu is your control center. It gives you two options, and picking the wrong one can cost you data.

Go to Settings > General > iPhone Storage. At the bottom of the list, tap the app with the bloated storage. You’ll see two buttons:

• Offload App — removes the app’s binary (the program itself) but keeps its documents and data. Reinstalling the app from the App Store restores it with your data intact. This is the safer choice when you just want to reclaim the app’s program space without losing logins or downloads.
• Delete App — removes the app and its local data completely. After you reinstall, you start fresh: no cached files, no documents, no drafts. This is the more thorough reset for storage, but you’ll need to sign back in and re-download any offline media.

When the goal is explicitly to remove accumulated cache, Delete App followed by a reinstall is the closest thing to a universal cache clear. Offload App retains Documents & Data, which is often where the cache lives.