This app saved my whole contact list. Changed from one job to another, got to keep my cell phone from the old job but got a new one from the new job. Wanted to transfer the contacts and thought I had backed them up in iCloud. Turns out the contacts were stored in the Outlook account of my old job. Fortunately, I could extract them using this app before my old employer closed down the account. Not only was this app a life-saver, it was awfully smooth to use to. Super-simple and functional interface.