The Skydeck Sync Client is a very simple application that runs in the background on your phone and relays your call logs and text messages over a secure connection to your account at Skydeck.com. Also, if an unrecognized number calls, Skydeck will let you know who it is and you can easily add them to your address book. You never have to look at the Skydeck Sync Client unless you want to change your settings.
The Skydeck Sync Client only works on certain kinds of cell phones(supported phones).