My iPhone Photos app seems to be using a lot of storage, even after I deleted unwanted photos and emptied Recently Deleted. Is there a safe way to clear the Photos cache without losing pictures or affecting iCloud Photos?
There isn’t really a Photos cache you can manually clear on an iPhone. Unlike Android, iOS handles temporary app files on its own, so Photos doesn’t have a separate “Clear Cache” button.
When Photos is taking up a lot of storage, the library itself is usually the reason. That includes regular photos, videos, Live Photos, screenshots, edits, and thumbnails. Freeing up meaningful space means reducing or compressing that content.
Start with the files most likely to make a difference:
- Delete duplicate or similar photos.
- Check long and older videos.
- Remove screenshots you no longer need.
- Clean up Live Photos if the motion part isn’t useful to you.
- Empty the Recently Deleted album afterward.
Doing this manually is manageable with a small library, but it gets tedious fast with thousands of files. I’ve used Clever Cleaner to speed it up. It sorts duplicate and similar photos, duplicate videos, Live Photos, screenshots, and other large items into groups. Nothing is removed automatically, so you can check each suggestion before deleting anything.
Smart Cleanup is useful if you don’t want to work through every category separately. It finds similar photos and compresses eligible media in one workflow. You can also handle each category yourself, use Compress to reduce file sizes without deleting the photos, or go through the library a little at a time with Swipe mode. The app is free to use, has no ads, and doesn’t require a subscription to get started. Some cleanup tools have a daily limit for new users.
Also check attachments in Messages. Shared photos and videos can still occupy a surprising amount of space even when they aren’t saved in your Photos library. Cleaning those out can free up more storage than searching for a Photos cache that doesn’t exist.
So when someone says to “clear the Photos cache” on an iPhone, they usually mean cleaning up the actual photo library. That’s what will lower the storage number while letting you keep the files you care about.
Don’t delete photos assuming iCloud keeps a separate backup. With iCloud Photos enabled, deletions sync to every device. @logichub is right about there being no cache button, but deleting files isn’t your only option: enable “Optimize iPhone Storage” in Photos settings. The phone keeps smaller local versions and downloads originals when needed, though the storage number may take a while to drop.
Don’t expect the storage figure to update immediately after cleanup. Photos may still be indexing changes or syncing deletions with iCloud, so leave the phone on Wi-Fi and charging for a while, then restart it and check iPhone Storage again. If Optimize Storage is enabled, iOS may keep local originals until the space is actually needed, which can make it look like nothing happened even though there’s no separate cache left to clear.
Don’t toggle iCloud Photos off or sign out just to force the storage number down. That can trigger a large re-download or leave you choosing between removing local copies and downloading originals, so let syncing finish before changing anything.
Even with Optimize Storage on, iOS keeps recently viewed originals cached locally, so if you keep scrolling the same albums the number barely drops. @rocketspark6846 is right that toggling iCloud off is the worst move here. Honestly, checking Settings, General, iPhone Storage for what iOS actually flags as ‘other’ tells you more than hunting a cache that isn’t there.