PhotoGem

PhotoGem automatically finds and groups similar photos in your library, helping you keep only the best shots. Browse and compare photos from Apple Photos, NAS drives, and local folders — all in one app. Automatic Similar Photo Grouping Detects nearly identical photos using image hashing, histogram analysis, and AI embeddings (MobileCLIP2). Instantly spot burst shots, repeated compositions, and subtle duplicates. NAS & External Drive Integration Browse photos directly on Synology, QNAP, Ugreen, and other SMB-compatible NAS devices over your network. Add external drives or local folders to manage all your photos in one place. Professional Format Support Supports 15 RAW formats including Sony ARW, Canon CR3/CR2, Nikon NEF, Fujifilm RAF, and Hasselblad 3FR, plus PSD, EXR, and AVIF. Preview large DSLR and mirrorless RAW files instantly. Photo Map View photos with GPS data as thumbnail cards on a map. Zoom in to see individual shots at each location. Storage Analytics Visualize format-based storage distribution, monthly photo trends, and largest files with interactive charts. Manage your storage efficiently. Quality Issue Detection Automatically classify blurry, overexposed, underexposed, and low-contrast photos. Quickly find photos that need cleanup. Synchronized Zoom Comparison Place photos side by side and zoom into the same area simultaneously to compare fine details like focus, noise, and expressions. Simple Cleanup One tap on Keep Best keeps the highest-quality photo and marks the rest for deletion. Deleted photos can be restored from Recently Deleted. Privacy First All analysis runs on-device. Your photos are never sent to external servers. Key Features - Automatic similar photo detection with AI grouping - NAS (SMB) and local folder photo browsing - 15 RAW formats + PSD, EXR, AVIF support - Photo Map (GPS-based location browsing) - Storage Analytics dashboard - Automatic quality issue detection (blur, exposure) - Cross-source duplicate detection - Synchronized zoom comparison - Photo quality scoring - One-tap Keep Best cleanup - Date-based timeline exploration - Favorites, Edited, and Recent filters - Album browsing - Deleted photo restoration - Fully offline — no network required