CONTACTS BACKUP FREE (com.ROWLI.contactsbackupfree) on Google Play
Contacts Backupsuggestions;1.make sure to make a backup to your storage card before you can upload it to your drive,gmail or dropbox.2.before restoring contacts delete all your contacts in the device it is a good way to avoid duplication.3.app saves your contacts as a vcf file(contacts.vcf).4.some lower versions of android require sd card .BackupThis app will allow you to backup your contacts onto SD card, Google drive, and Dropbox. You can also email the VCF files. RestoreIt will also allow you to restore all your contacts to your device. Adding/DeletingYou can add and delete your contacts through the app. You will be able to see all your contacts in the list view.