How to Free Up iPhone Storage by Removing Duplicate Photos

Last updated: May 1, 2026

How do I check what's using my iPhone storage?

Before you start deleting, see what's eating the space:

1. Open Settings → General → iPhone Storage.
2. Wait for the bar at the top to populate. Photos is usually the biggest slice.
3. Tap Photos to see the exact GB used.

If Photos is more than a third of your used storage, deduplication will probably free up several gigabytes.

How do I clear exact duplicate photos with the native tool?

iOS has a built-in duplicate finder that handles pixel-identical copies:

1. Open Photos → Albums.
2. Scroll to Utilities → Duplicates.
3. Tap Merge on each group, or select multiple and merge in bulk.

This is free and built in, but it only catches exact duplicates. Most of the recoverable space is in similar photos that look almost the same — and those need a different tool.

How do I remove similar photos iOS does not catch?

The bigger win is clearing burst sequences, retakes, and near-identical screenshots. PhotoDedup uses on-device AI to group photos that look the same to a human, and lets you delete all but the best one in each group:

1. Open PhotoDedup.
2. Pick a date range — last 30 days is a good first scan.
3. Tap Scan. The app processes locally, no upload.
4. Review each group; the highest-quality photo is highlighted.
5. Delete the rest with one tap.

Why did deleting photos not free up storage immediately?

Deleted photos sit in Recently Deleted for 30 days. The space isn't reclaimed until that album empties — either after 30 days or when you do it manually:

1. Open Photos → Albums.
2. Scroll to Utilities → Recently Deleted.
3. Tap Select → Delete All.

Only do this once you're confident you didn't delete anything you want back. After this, the space is gone for good.

How much iPhone storage can duplicate photo cleanup recover?

Realistic ranges:

• Light users (under 1,000 photos, mostly screenshots): 0.5–2 GB
• Average users (5,000–20,000 photos, some bursts): 3–10 GB
• Heavy users (50,000+ photos, lots of bursts and retakes): 15–50 GB

If you've never cleaned your library, expect the higher end of your bucket.

What else can I do after removing duplicate photos?

• Offload large videos to iCloud or a Mac. A single 4K video can be larger than thousands of photos.
• Turn on Optimise iPhone Storage in Settings → Photos. This keeps full-resolution copies in iCloud and smaller versions on the device.
• Delete old screenshots. The Photos app has a Screenshots album under Albums → Media Types.