When to use which.

When the job is a handover, and nobody wants a server to run.

• Nobody on the team should have to install, secure and patch a server. Privatta is a desktop app on each end, and the Nextcloud server does not run on Windows.
• The job is getting a file to one person, not keeping a shared library.
• Two machines on an office network with no internet connection and nothing else installed.
• Nothing may be pushed onto a machine. In Privatta the recipient always asks for a specific file.
• Every transfer must be encrypted, without anyone having to choose which folders are.

For a central place where the organisation's files live, clearly.

• You want one shared library, synced to every device, with nothing to send.
• You want chat and office documents in the same platform.
• People work on macOS, iOS or Android. Nextcloud has apps for all of them; Privatta runs on Windows (Linux to follow).
• Outsiders should upload files to you through a link.
• You already have people who run servers, and a server is what you want.

Some organisations keep Nextcloud as the shared library and use Privatta for handovers that should not land in it, or between machines on a network where no server runs. The two do not get in each other's way.

The free version of Privatta needs no account and no card. It covers transfers on your own network, up to ten a day, for personal use. Sending over the internet needs Privatta Pro: €19 a month for two seats and €10 for each extra seat — and the free version includes all of Pro for its first 14 days. Pro also brings user groups and virtual folders; Enterprise adds an access log that cannot be quietly edited.