# CullKit

> CullKit is a photo culling and rating app for iPhone, iPad, and Mac.
> It connects natively to Synology Photos and works with any other NAS (QNAP, TrueNAS, UGREEN, Asustor, and more) or local folder via SMB.
> Star ratings, pick/reject flags, and color labels are written to XMP sidecar files, compatible with Lightroom, Capture One, and Darktable.
> All processing is local — no cloud upload, no third-party server. Credentials are stored in the device Keychain.
> Developed by idyation GmbH. Available on the Apple App Store (iOS, macOS). Subscription with a 7-day free trial; one subscription covers both platforms.

## Product

- Homepage: https://cullkit.com/
- App Store: https://apps.apple.com/app/apple-store/id6760818788

## Blog

- How to Cull and Rate Photos on Your Synology NAS: https://cullkit.com/blog/culling-photos-synology-nas/
- Culling Photos from a QNAP, TrueNAS, or UGREEN NAS: https://cullkit.com/blog/culling-photos-qnap-truenas-ugreen-nas/
- No NAS? Cull from Any Local Folder or External SSD: https://cullkit.com/blog/cullkit-local-folder-culling/
- The Wedding Photographer's Culling Workflow: https://cullkit.com/blog/wedding-photographer-culling-workflow/

## Key Facts

- Platforms: iOS 16+, macOS 13+
- Formats: RAW (all major camera brands), HEIC, JPEG, RAW+JPEG pairs
- NAS support: Synology Photos (native); QNAP / TrueNAS / UGREEN / others via SMB
- Metadata: XMP sidecar files (star ratings, pick/reject flags, color labels)
- Privacy: 100% local processing, no cloud upload, Keychain-stored credentials
- Pricing: Monthly and yearly subscription, 7-day free trial, one subscription for macOS + iOS
- Developer: idyation GmbH

## Legal

- Privacy Policy: https://cullkit.com/privacy/
- Terms of Service: https://cullkit.com/terms/
- Legal Notice (Impressum): https://cullkit.com/legal/