Give me a nail, this is the hammer

This app is amazingly powerful while still leaving full control to the user. In my case I needed to move/merge contacts from Google, Exchange, and my private owncloud and it worked flawlessly. Example: merge Exchange contacts into Owncloud, but only those contacts in specified groups with some manual select/deselect on top => done! The workflow is technical indeed, with a lot of clicks and choices but they map logically to the data flow and I very much prefer this fine grained control over some Blackbox magic. Very impressive!

Johferber about Contact Mover & Account Sync, v2.2.4