The Notion app caches pages, images, and attachments so they load fast and work offline, which can grow to hundreds of megabytes. You can clear it without losing your notes, your workspace lives in Notion's cloud and stays safe.
Short answer:
- Android: Settings > Apps > Notion > Storage > Clear cache (safe, temporary files only).
- iPhone: there's no in-app cache button, so offload or delete and reinstall Notion to dump the cache.
- Avoid Clear data / Clear storage on Android, which signs you out; your pages are cloud-synced and never deleted by clearing the cache.
Why the Notion App Uses Storage
Notion downloads and caches the pages you open, along with their images, file attachments, and database content, so they load instantly and remain available offline. The more pages and media-heavy workspaces you browse, the larger the cache grows. Embedded images and uploaded files are the biggest contributors.
Reassuringly, your actual content lives in Notion's cloud and syncs across devices. The local cache is just a fast copy. Clearing it never deletes a page, only the temporary local data Notion re-downloads when you open pages again.
To check the size on Android, go to Settings > Apps > Notion > Storage and look at the Cache figure. On iPhone, see Settings > General > iPhone Storage > Notion and check Documents & Data.
Clear Notion's Cache on Android
This is the safe, recommended method and it keeps you logged in.
- Open Settings > Apps (or Apps & notifications > See all apps).
- Tap Notion.
- Tap Storage (or Storage & cache).
- Tap Clear cache.
That's it, the cache is cleared and Notion keeps working normally. Clear cache removes only temporary files and is completely safe.
Do not tap Clear data / Clear storage beside it for routine cleanup: that resets the app to a fresh install and signs you out, and any pages you had marked for offline access will need to re-download. Your content is never lost because it's cloud-synced, but it's an unnecessary hassle. See clear cache vs clear data on Android for the full distinction, and how to clear app cache on Android safely for the safe routine.
Clear Notion's Cache on iPhone
iOS apps, including Notion, don't expose a simple cache-clear button, and Notion has no in-app option. You have two reliable routes.
- Offload the app: Go to Settings > General > iPhone Storage > Notion > Offload App, then reinstall it with one tap. This dumps the cache while your synced content stays in the cloud, just log back in.
- Delete and reinstall: Delete Notion, then reinstall from the App Store for a fully clean install. Log back in and your workspace re-appears.
Both are safe because your Notion pages live on Notion's servers, not on your iPhone.
Mind Offline Pages and Large Attachments
Two things make Notion's footprint larger than expected.
- Offline pages: If you've enabled offline access for big pages or whole sections, Notion stores full local copies. Review which pages you actually need offline and turn off the rest to shrink local storage.
- Large attachments: Pages with many high-res images or large file uploads cache more data. If a workspace is media-heavy, its cache will naturally be bigger.
After clearing the cache, only the pages you reopen get re-cached, so your footprint stays small if you browse selectively.
When Clearing the Cache Isn't Enough
If Notion still reports a large size right after clearing, give the system a moment to recalculate and restart your phone. A persistently large figure usually means a reinstall (Android) or delete-and-reinstall (iPhone) is the cleaner fix.
The golden rule: nothing you do to the Notion app on your phone deletes your content. Pages, databases, and uploads are stored by Notion and synced, so clearing the cache or reinstalling is risk-free.
Keep Notion (and Your Phone) Lean
A short routine prevents the cache from creeping back:
- Android: clear Notion's cache every few weeks if you use media-heavy workspaces.
- iPhone: offload or reinstall when Documents & Data gets large.
- Trim offline pages you no longer need.
Clearing one app's cache helps, but your phone usually needs broader attention too. A review-first tool like Cleanor for Android (or Clenoir for iOS) scans on-device and surfaces large videos and duplicate photos, showing everything before you confirm a deletion. For more, see the clean up phone storage guide and the storage cleanup FAQ.
With the cache cleared and offline pages trimmed, Notion keeps working exactly as before, just without quietly hoarding storage.
Want the fast version? Cleanor for iPhone scans on-device — nothing uploaded — and surfaces your largest videos, duplicate photos, and heavy caches in one pass. For the full routine, see the free up phone storage guide.
FAQ
Will clearing Notion's cache delete my notes?
No. Your pages, databases, and uploads live in Notion's cloud and sync across devices, so clearing the cache only removes the temporary local copy that Notion re-downloads when you reopen pages. Nothing you do to the app on your phone deletes your content.
How do I clear the Notion cache on an iPhone?
iOS apps including Notion have no in-app cache-clear button, so go to Settings > General > iPhone Storage > Notion > Offload App and then reinstall it with one tap, or delete and reinstall from the App Store. Both dump the cache while your synced content stays in the cloud; just log back in.
What makes the Notion app's storage footprint larger than expected?
Offline pages and large attachments are the main culprits. Pages or sections marked for offline access store full local copies, and media-heavy workspaces with high-res images or large file uploads cache more data, so trimming offline pages you no longer need shrinks local storage.