ContactTube - Help you save your backup into mail, local,... and backup it when needed at Mac App Store analyse

ContactTube Free is the easiest way to do anything with your contacts: - Multi-Select contact for actions: SMS, Email, Delete. - Backup and restore your contacts right from your phone without the need for a computer or synchronization. You can backup all your contacts with a single touch and send them to yourself as a VCard attachment via email.
 All contacts can then easily be restored any time by simply opening the .vcf file in your mailbox with iOS Mail app.