Short answer
Dropbox Transfer is useful for teams already working inside Dropbox. ZipPigeon is narrower: it is built for sensitive handoffs where the sender wants encryption before upload, encrypted storage, recipient access, and less dependence on broad shared-folder permissions.
When Dropbox Transfer may fit
Dropbox Transfer can fit teams that already manage files in Dropbox and want transfer features inside that ecosystem. Checked July 12, 2026: Dropbox documents plan-based Transfer size limits in its official Dropbox Transfer help page.
When ZipPigeon may fit
ZipPigeon may fit when the transfer is a confidential external handoff, the sender wants a delivery workflow separate from long-term storage, and the security explanation needs to be clear about file contents, keys, metadata, and recipient access.
Current comparison limits
This comparison does not claim Dropbox Transfer is weak or unsuitable for Dropbox-centered teams. It focuses on when a dedicated private delivery flow is easier to reason about than a transfer feature inside a larger storage workspace.