Contacts Backup creates a Vcf or vcard file of your device contacts and their details (this does not include photos). The file is currently not saved in the cloud - you send it to yourself via email, so that you have the info.
The file may be used to restore the contacts using many apps and services such as the iPhone itself. It can also be used to restore the contacts or import/move contacts between platforms with Google contacts, Outlook, iTunes, iCloud, etc.
How do I use Contacts Backup?
Note: In order to Backup your contacts, you need to first get the Premium Pack.
Once you have the Premium Pack, go into the "Contacts" tab. Press the "Backup" button on the top menu.
This will automatically create a file of your device contact info.
When the backup file has been created, you need to send it to yourself.
Tap the export button in the bottom middle of your screen.
This will take you to your email so you can send the file to yourself (If you have not yet connected your email to your device, you will be prompted to do so).
Once sent, check your email and save the file in a safe place. Sync.ME does not save this file anywhere else and is unable to restore this information for you.