iPhone storage still full after deleting photos

The short answer

Deleting a photo on an iPhone does not remove it. It moves it to Recently Deleted, where iOS keeps it for 30 days so you can change your mind. For those 30 days the file still sits in your storage and still counts against it. Your free space only changes when that album is emptied, or when the 30 days run out on their own.

How to actually get the space back

1. Open the Photos app.
2. Go to Albums, scroll to the bottom, and open Recently Deleted under Utilities.
3. Unlock it with Face ID or your passcode if iOS asks.
4. Tap Select, then Delete All, and confirm.

Give iOS a minute or two afterwards. The figure in Settings > General > iPhone Storage is not recalculated instantly and can lag behind the actual free space on the volume.

Four other reasons the number does not move

iCloud Photos is optimising your library

If Optimize iPhone Storage is on, older photos are already stored locally as smaller versions and the originals live in iCloud. Deleting a picture then frees only the size of the local copy, which can be a small fraction of what the photo appears to weigh. It also removes the photo from iCloud and from every device signed into the same account.

Your photos were never the biggest item

Open Settings > General > iPhone Storage and read the list. On plenty of phones Messages attachments, a video app's cache, or downloaded podcasts and offline video outweigh the entire camera roll. Deleting photos will never fix a storage problem that is not made of photos.

What you deleted was small

Five hundred screenshots can be less than a single 4K video. Deleting by count feels productive and frees very little. Deleting by size is what moves the bar, which is why it is worth working from a list sorted by measured file size rather than by date.

System Data grew into the space

iOS uses free space for caches and temporary files, and the System Data figure expands and contracts on its own. Space you free can be absorbed for a while before it settles. Restarting the phone and leaving it alone for a few hours is usually enough.

Why cleaner apps get blamed for this

The App Store is full of one star reviews that say a cleaner freed zero gigabytes. Almost always the app did exactly what it said, the photos went to Recently Deleted like every deletion on iOS does, and the app then announced a saving that had not happened yet. The app was not lying about the deletion. It was taking credit at the wrong moment.

Nixly is built around not doing that. After a clean-up the result screen states that iOS keeps deleted photos for 30 days and that the space is truly reclaimed once you empty the album, and it offers a button that opens the Photos app so you can go and do it. The number it shows is labelled as reclaimed by that clean-up, not as free space you now have.

What will not help

• Restarting on its own. It can settle the System Data figure, but it does not empty Recently Deleted.
• Apps promising a speed or memory boost. iOS manages memory itself, and no App Store app has the access such a claim would require.
• Deleting and re-adding the same photos. This creates duplicates rather than removing any.

If the camera roll really is the problem, the full storage checklist works through the free routes first, and the duplicate remover page explains why so many apps report more duplicates than you actually have.