If your iPhone shows the warning “Storage Almost Full”, it’s time to do some cleanup. But what can you delete safely without losing important data or damaging the system? And what should you avoid touching?
This guide explains which files and apps are safe to remove, how to free up space without deleting memories, and which system data you should leave alone.
Step 1: Check what’s taking up space
Go to Settings > General > iPhone Storage
Wait a few seconds while your device calculates usage
You’ll see a breakdown by category (Apps, Photos, System Data, etc.) and a list of the largest apps.
Use this info to decide what matters and what doesn’t.
What to safely delete
1. Unused apps
If you haven’t opened an app in months, it’s likely safe to delete.
- Tap the app in the list
- Choose Delete App to remove it completely
- Or enable Offload Unused Apps to remove the app but keep its data
You can always reinstall from the App Store later.
2. Old photos and videos
Photos and videos can take up dozens of gigabytes.
- Back them up to iCloud, Google Photos, or your computer
- Then delete them from your device
- Don’t forget to empty the Recently Deleted album (Photos > Albums > Recently Deleted)
Also go to Settings > Photos and turn on Optimize iPhone Storage – this keeps smaller versions of your photos on your iPhone and full-resolution files in iCloud.
3. Downloaded media
Clear offline content from apps like:
- Netflix, Spotify, YouTube, Disney+
- Podcasts
- Audiobooks (e.g., Audible)
These can use multiple gigabytes each. In most apps, go to Settings or Library and delete downloads manually.
4. Message attachments
iMessage threads with lots of photos, videos, and GIFs take up space.
- Go to Settings > Messages > Manage Storage
- Review Top Conversations and Large Attachments
- Delete only what you no longer need
You can also enable Auto-Delete old messages (Settings > Messages > Keep Messages > 30 Days)
5. Safari data and website cache
Clear Safari history and data to reclaim a bit of space:
- Settings > Safari > Clear History and Website Data
This won’t delete bookmarks or saved passwords.
What to keep (or handle with caution)
1. System data
This category includes important files used by iOS. Don’t try to remove or modify system files, even with third-party apps.
2. Notes, voice memos, and app data
If you’re unsure what an app stores, check before deleting. Some apps may contain documents, saved work, or login data that would be lost if erased.
3. iCloud files
If you use iCloud Drive or apps like Files, remember: deleting a file locally may delete it everywhere. Double-check before removing anything from shared folders.
Extra tips to prevent storage issues
- Enable iCloud Photos with Optimize Storage
- Keep iMessages under control with auto-delete settings
- Use cloud storage apps (Google Drive, Dropbox) for large files
- Restart your iPhone occasionally to clear cached memory
- Use Storage Recommendations under iPhone Storage settings for smart suggestions
Final thoughts
“Storage Almost Full” doesn’t mean you need a new iPhone—it just means it’s time to manage your digital clutter. With smart backups and a bit of organization, you can quickly reclaim several gigabytes without losing anything important. Focus on apps, media, and downloads first—and leave system data untouched.
