PhotoPrune

PhotoPrune - Your Smart Photo Cleanup Assistant

Focused Mission - We do one thing exceptionally well: help you delete unwanted photos. No bloated features, no AI
editing, no social sharing. Purpose-built for mass photo culling.

Tired of "Storage Full" warnings? PhotoPrune uses advanced AI to declutter your photo library in minutes. Intuitive
swipes and intelligent detection quickly free up gigabytes.

Why Choose PhotoPrune?

Your iPhone has thousands of photos: vacation snapshots, duplicates, blurry shots, poorly exposed images. Manual cleanup
takes forever. PhotoPrune makes it fast, fun, and completely private.

Two Powerful Modes

Smart Quick Selection - AI-Powered Detection

Let artificial intelligence scan your library and identify problematic photos:

Blur Detection - Computer vision algorithm (Variance of Laplacian) scientifically identifies out-of-focus photos.
Threshold 100.0 calibrated through testing.

Exposure Analysis - Detects overexposed photos (bright areas over 25%) and underexposed images (dark areas over 40%)
through pixel histogram sampling.

File Size Check - Flags suspicious small files under 50KB indicating quality issues.

Duplicate Detection - Finds photos with identical timestamps and file sizes.

Quality Scoring - Multi-factor system rates photos 0-100 points. Photos scoring below 70 or with critical issues are
flagged.

Batch Processing - Scan 10-200 photos per batch. Adjustable in Settings, default 50.

Real-Time Progress - Circular indicator shows AI progress. Displays low-quality photo count during scanning.

Systematic Coverage - Timestamp-based tracking ensures no duplicate scanning. Continues from last position.

AI flags candidates, but final decision is yours. Review and confirm before deletion.

Manual Selection - Total Control

When you want to decide everything yourself:

Card-Based Interface - Full-screen photo cards for detailed review.

Intuitive Swipes - Up to delete, down to favorite, left for next, right for previous. Low trigger threshold (3% of
screen).

Customizable Batches - Review 15-200 photos per session. Adjustable in Settings, default 30.

Smart Filtering - Excludes favorited and reviewed photos. Truly random selection.

Progress Tracking - Progress bar and text show position like "23/30".

Safe Deletion Workflow

PhotoPrune never deletes without your confirmation:

Mark photos via AI or manual swipes
Review marked photos in grid layout (3-column view)
Tap photos to toggle selection
View exact space to be freed, real-time calculation
Confirm deletion in final dialog
Photos move to "Recently Deleted" album, recoverable 30 days

Example: "Delete 47 photos to free up approximately 234 MB"

Free vs Premium

Free Version (Forever):
Unlimited photo selection and review
Full AI quality detection with all algorithms
Manual and Smart modes available
Delete 30 photos daily (resets at midnight)
Complete statistics tracking
No advertisements

Premium Version ($3.99 One-Time):
Unlimited daily deletions
Lifetime access, not a subscription
Restore purchases on all devices
All free features included

Language Support - Full localization in Simplified Chinese and English. Instant switching without restart. All UI,
alerts, and settings translated.

Keep Screen On - Prevent auto-lock while swiping photos. Perfect for long sessions.

Privacy First - 100% Local Processing

Your photos never leave your device:

All AI detection runs locally using iOS PhotoKit framework.
Zero uploads to any server. No cloud storage or external processing.
No tracking. No analytics.
No third-party SDKs except StoreKit for purchases.
Never stores photo content or metadata. All processing device-local with no sync.