I've been using InPrivy instead of emailing sensitive files, and it's a solid fix for a problem most of us just tolerate. Attachments in email never expire and sit around in inboxes, waiting for a mail admin or the mail hoster to look into your information. InPrivy replaces that with a link that self-destructs after viewing (or on a timer), and I can see exactly when something was opened.

From my research I would say that the solution looks GDPR-complaint, which is important to me. It is built by ivy.mayhem GmbH, a Hamburg-based company, with data stored on German servers (via Hetzner) rather than mixed international infrastructure. The data is AES-256 encrypted, with the company stating it has no access to the encrypted content itself.

From my point of view, this InPrivy lifetime deal is a no-brainer. I would highly recommend it to everyone.