Your next steps
Compare both storage screens
Check Settings → General → iPhone Storage, then your Apple Account’s iCloud storage. Identify which one is actually near its limit.
Review photo settings
If you use iCloud Photos, inspect whether Optimize iPhone Storage is enabled. Make sure uploads and sync are working before assuming originals are safely available.
Allow time and connectivity
Optimization is managed by the system and may need network access and time. Do not expect an immediate, predictable amount of free space.
Review local-only content
Downloads and app documents may still occupy the phone. Clean those in the owning app, or review unwanted photo-library items carefully.
Choose the right action
| Your priority | A useful approach | Before you act |
|---|---|---|
| Keep the original | Retain the full-quality or meaningful version; review replaceable content elsewhere first. | A smaller copy may not preserve edits, movement or all detail. |
| Remove an unwanted item | Inspect it, verify any necessary independent copy and approve only the intended selection. | Deletion in a synced library can affect other devices. Permanent removal ends recovery. |
Where Smart Cleaner helps
Smart Cleaner helps review unwanted media in the library, which is a different choice from keeping everything and optimizing local storage.
What it does not do
It cannot expand physical capacity, control iCloud optimization or turn sync into an independent backup.
Your review checklist
Tick these as you review. This list does not change your files or email, and clears when you leave or reload.
0 / 4 checked
Questions you might still have
Can I delete photos from my phone but keep them in synced iCloud Photos?
Deleting from an iCloud Photos library also affects synced devices and iCloud. Use an appropriate independent copy or optimization workflow instead.
Will upgrading iCloud always fix the warning?
Only if cloud capacity is the relevant bottleneck. It does not directly enlarge local storage.
Sources and product limits
Written by the Smart Cleaner team using the official guidance linked below and the app’s current behavior. Menus and availability can vary by version. No benchmark or guaranteed saving is implied.