What is Twindocs?
Upload documents, staple them, and send altogether - with just a click….
Twindocs is your personal archive in the cloud.
Upload notes, photos and documents. You can use Twindocs to organize, classify, tag in color and staple.
Twindocs is also a secure mail service for all entries and allows documents to be sent securely to users, customers, and citizens. In some countries, users are receiving invoices, receipts, and other documents in their very own Twindocs folders.
Is it possible to staple electronic documents? Yes - only with Twindocs
The service seems no longer updated since 2012 and iPhone app is no longer available. You can still register new accounts and the website seems still to work.