Perfect Browse 9

Perfect Browse will display thumbnails and previews from a variety of sources, including memory cards, hard drives, Dropbox, iCloud Photo Stream, OneDrive, Google Drive, and more.

Once the images are displayed in Perfect Browse, you can add star ratings, apply a color label, and mark as a favorite. The star ratings and color labels are compatible with Aperture. So if you apply them in Perfect Browse, they will appear in there after transfer.