BirdCull vs Keeper

BirdCull is desktop software for reviewing bird-photo burst sequences and selecting stronger candidates. It groups similar images, then scores them using head and eye visibility, sharpness, pose, and differences within each burst. The process is local: BirdCull says photo files, paths, and EXIF metadata are not uploaded. Results can be exported as grouped hard-link folders or star-rated XMP sidecars for Lightroom, Bridge, Photo Mechanic, and similar tools. AI-assisted culling and RAW preview are supported. The free trial processes up to 200 photos per capture date. A full license costs $49 as a one-time purchase, removes the trial batch limit, and includes folder rating output, star XMP output, and email support for purchase and activation issues. One user may activate and use a purchased license. Windows support covers 64-bit Windows 10 and Windows 11. The current Mac package targets Apple silicon Macs with M-series processors, not Intel Macs. For large photo days, BirdCull recommends at least 16 GB of RAM, SSD storage, and local drives instead of network folders. Purchases are non-refundable.

Keeper is a macOS photo culling app for photographers reviewing large shoots and selecting images for editing and delivery. Its keyboard workflow uses single-key shortcuts to rate, pick, reject, filter, and change views. A cursor-following loupe supports full-resolution checks of focus and sharpness. Face detection and similarity grouping assist with review, while the final image selections remain with the photographer. The app exports chosen original files and their matching XMP sidecars to a selected folder. Keeper runs photo review and AI-assisted analysis locally on the Mac, and culling does not require an internet connection. The maker says it is built for Apple Silicon, can handle 10K+ photos, and targets 60 frames per second. It currently supports macOS 15 and later. Blur detection is listed as coming soon. Keeper is paid, with a 30-day trial and a lifetime license listed at $15 as a one-time purchase as an early access price; the regular price is $30. There is no free plan.