How to Clear Pinterest Cache on iPhone and Save Gigabytes
Pinterest is a deeply visual app. Plan a wedding, remodel a kitchen, or collect recipes and you scroll past thousands of high-resolution images a week. To keep that scrolling fast, Pinterest caches those images on your iPhone — and over time that invisible cache can swell to several gigabytes. Here is how to clear the Pinterest cache on your iPhone safely.
How do you clear Pinterest cache on iPhone? Pinterest is one of the few apps with a built-in cache-clearing button:
- Open the Pinterest app.
- Tap your profile icon in the bottom-right corner.
- Tap the gear / settings icon in the top-right.
- Tap Privacy & data.
- Scroll to the bottom and tap Clear app cache.
That button handles most cases. Here is why Pinterest hoards data and what to do if clearing the cache is not enough.
Why Pinterest Uses So Much Space
The Pinterest feed is essentially an endless grid of images and auto-playing videos.
Every Pin you scroll past has to be downloaded from the internet. If the app discarded each image instantly, scrolling would stutter and burn through cellular data every time you scrolled back up. So Pinterest stores images locally in a hidden folder. For an active user with hundreds of boards and thousands of saved Pins, that folder becomes one of the larger items in your storage settings.
Because iOS files this under Documents & Data, the system does not auto-purge it when storage runs low — you have to clear it yourself.
Using the In-App Button Safely
Always try the native button first: Profile > Settings (gear) > Privacy & data > Clear app cache. It deletes the temporary image and video files.
Is this safe? Yes. Clearing the cache does not delete your saved Pins, boards, account, or settings — all of that lives on Pinterest's servers. The next time you open a board, images may take an extra moment to reload as the app re-downloads them. You lose nothing permanent; you only discard temporary copies the app can rebuild any time.
How to Check Pinterest's Real Storage Use
To confirm the cache is actually shrinking, check the system view:
- Go to Settings > General > iPhone Storage.
- Scroll down and tap Pinterest.
- Note the Documents & Data figure before and after clearing the cache.
| Method | What it removes | Keeps your Pins & boards? | Effort |
|---|---|---|---|
| In-app Clear app cache | Temporary images & videos | Yes | Lowest |
| Offload App | App binary only (keeps data) | Yes — but cache stays | Low |
| Delete App + reinstall | Everything local, incl. cache | Yes (stored on server) | Highest |
Note that Offload App intentionally preserves Documents & Data, so it will not clear a bloated cache — use Delete instead for a deep clean.
When the Cache Won't Clear (The Deep Clean)
Sometimes the in-app button doesn't fully work: you tap it, but Settings > General > iPhone Storage > Pinterest still shows several gigabytes of Documents & Data. When the cache is stuck or deeply embedded, the in-app button can't reach it.
To force a deep clean:
- From the Home Screen, touch and hold the Pinterest app icon.
- Tap Remove App, then Delete App. Do not choose Offload App — that preserves the bloated Documents & Data folder.
- Open the App Store and reinstall Pinterest.
- Sign back in.
Why this is safe: every board, Pin, and follow lives on Pinterest's servers. Deleting the app destroys only the local cache. After reinstalling and signing in, your account looks exactly the same — minus the bloat — and the app drops back to roughly its base install size.
How to Keep the Pinterest Cache Smaller
The cache will always rebuild as you browse — that is by design and keeps scrolling smooth — but a few habits slow it down:
- Clear the cache periodically, for example once a month if you pin heavily, rather than waiting for a storage crisis.
- Avoid downloading Pins to your camera roll unless you need them offline, since those become permanent files outside the cache.
- Watch fewer auto-playing video Pins, which cache larger files than still images.
If you only browse occasionally, you may never need to touch the cache at all. The "Clear app cache" button exists precisely so you can reset it whenever it grows inconvenient, without losing a single saved Pin.
Frequently Asked Questions
Does clearing Pinterest cache delete my Pins or boards? No. Your saved Pins, boards, and account settings live on Pinterest's servers. Clearing the cache only removes temporary image and video files, which re-download as you browse.
Why does Pinterest still show gigabytes after I cleared the cache? The in-app button sometimes can't reach a stuck cache. Deleting and reinstalling the app (not offloading it) clears it completely without losing your account.
Will this stop the cache from coming back? No — heavy browsing rebuilds the cache over time, which is normal. Clearing it once or twice a year, or reinstalling when it gets large, keeps it in check.
Is Your Storage Still Full? If you wiped the Pinterest cache and still see "Storage Full," the real culprit is probably your camera roll.
Don't spend hours hand-sorting photos. Use a dedicated utility like Clenoir to skip the confusing menus: it instantly isolates your heaviest 4K videos and groups blurry, duplicate burst shots. Everything you remove goes to Recently Deleted for 30 days, so you can recover real space without ever risking an important memory — see more in our free up iPhone space guide.