Want your iPhone to feel snappier and reclaim storage? Here’s exactly what to do, step by step.
Clearing cache on iPhone isn’t one single button — it’s a few targeted moves depending on where the cache lives (Safari, apps, messages). Do these and you’ll free space and fix weird app behavior without breaking stuff.
Clear Safari cache and website data
- Open Settings and tap Safari.
- Scroll down and tap Clear History and Website Data. This removes cookies, history, and site data (you may be signed out of some sites).
- For more granular control: go to Settings → Safari → Advanced → Website Data and tap Remove All Website Data or delete specific site entries.
Free up app cache without losing important data
- Open Settings → General → iPhone Storage. Wait a moment while it loads usage details.
- Tap an app that’s using a lot of space. If it offers Offload App, use that to remove the app binary but keep documents & data.
- If offloading doesn’t help or the app still uses a lot, tap Delete App and reinstall from the App Store — this fully clears the app’s local cache (but may remove data not backed up).
- Check inside apps: some apps (Chrome, Spotify, etc.) have their own clear cache or storage controls in their in-app settings.
Clear Messages and attachment cache
- Go to Settings → General → iPhone Storage → Messages.
- Use Review Large Attachments to delete big videos, photos, or GIFs you don’t need anymore.
- Consider setting Messages to auto-delete old threads: Settings → Messages → Keep Messages → choose 30 Days or 1 Year.
Clear leftover system cache by restarting
- Sometimes a simple restart clears temporary system caches. Hold the Side button and a volume button, slide to power off, then turn it back on.
- If things are stuck, do a Force Restart (method varies by model): for iPhone 8 and later: press and quickly release Volume Up, press and quickly release Volume Down, then hold the Side button until the Apple logo appears.
Reset network settings (clears DNS and network cache)
- Open Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.
- This clears saved Wi‑Fi passwords and VPN settings but can fix flaky network caching issues.
Manage storage and remove other big caches
- Open Settings → General → iPhone Storage and review the Recommendations (Offload Unused Apps, Review Large Attachments).
- Look for apps labeled “Documents & Data” that are huge — delete or offload as needed, or clear inside the app if it offers that option.
- Photos and videos often take the most space — use iCloud Photos with Optimize iPhone Storage enabled if you want to keep everything in the cloud but free local space.
Common mistake people make
Lots of folks assume “clearing cache” is a single universal action and start deleting photos or apps without checking backups. That can remove stuff they actually wanted to keep. Always check whether data is stored in iCloud or backed up before deleting an app or large files.
Pro Tip
If you want to clear an app’s cache but keep your account info, try Offload App first — it removes the app itself but preserves your documents and settings so reinstalling restores your state without the app’s binary cache.
Warning
Deleting apps or using reset options can wipe local data and sign you out of websites. Back up important stuff (iCloud or a computer backup) and have Wi‑Fi passwords handy before you reset network settings or delete apps.