Dropshare 4 for Mac - Major update to Popular Secure File Sharing Tool Posted 2/08/2016 at 19:16 UTC in Mac by gnye@amdesign.net | Permalink | Tweet Independent software developer, Timo Josten today announces Dropshare 4, a major update to his popular secure file sharing tool developed exclusively for Mac OS X. Dropshare is a menu bar application for Drag & Drop upload files, screenshots and even directories to your own server, Amazon S3 and Rackspace Cloud Files. Version 4 introduces a reworked UI, Landing pages may now be synchronised with Dropshare Sync, as well as support of Amazon S3 API-compliant services.