Cyberduck Registration Key Site

Buying Cyberduck on the Mac App Store or Windows Store acts as a contribution. While these versions don't use a separate "key file" (the store handles the license), they provide the same "ad-free" experience. How to Register Your Copy

: If you buy Cyberduck from the Mac App Store or Windows Store, you do not need a registration key; the license is managed by the store itself. Cyberduck Registration Key