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Cullia

Declutter your photo library — on your device.

Cullia finds exact duplicate photos in your library, groups them, and lets you review each group photo by photo — mark what to keep, exclude the rest, and delete only after you confirm. Every analysis happens locally. Nothing is uploaded, synced, or shared.

Coming soon on the App Store
iPhone 100% on-device No account required No auto-delete — you confirm

What Cullia does

Exact duplicate groups

Automatically groups photos that are identical at the pixel level — true duplicates — so you can review them together and keep one.

Review each group

Look through each group photo by photo: swipe between photos, pinch to zoom into details, then mark every photo keep or delete. Undo is one tap away.

Explicit delete only

Deletion happens only after you mark photos and confirm — first in Cullia, then in the system photo delete dialog. Photos go to Recently Deleted, where you can restore them.

Free scan · Pro whole library

Free scans up to 300 photos per batch. Cullia Pro (one-time purchase) scans your entire library with no scan limits.

On-device analysis

Duplicate detection runs entirely on your iPhone — no uploads, no cloud processing.

Private by design

No servers, no analytics, no tracking, no accounts. Your photos and your library never leave your device.

How it works

  1. Grant library access. Cullia reads your photo library with your permission — full access or selected photos.
  2. Cullia analyzes on-device. Exact duplicate groups are found locally, in seconds.
  3. Review and mark. Look through each group, zoom into details, and mark every photo keep or delete. Undo freely.
  4. Confirm to clean up. Only the photos you marked are deleted, after your confirmation in Cullia and the system photo delete dialog.