Altsync for Outlook - Version 3.12 We know that syncing folders can be a hassle, especially when it's done manually, Altsync solution provides a simple way to sync everything in one click across 2 or more computers. Altsync isn't just limited to one type of folder, in-fact - Altsync allows you to share all types of folders; including calendars, contacts, emails, journal and more.There is no server required - Altsync works through email. It's one click and you are done. Add all of your email addresses from the computers you want to sync with and you will receive the folders - it's really that simple. You are not only limited to sharing folders with yourself as you are able to share with anyone - with just their email address.