Wide Angle Contact Transfer - Contact Transfer- easily manage contacts between iPhone, Android & PC with this Windows software. Transfer contacts directly between devices and edit them from your PC!
MCBackup - MCBackup is an app by Globile that comes up with features to help you in creating a backup all your contacts to restore it in case of deletion of contacts.
SMS Backup+ - Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP - jberkel/sms-backup-plus
My Contacts Backup - My Contacts Backup app enables users to keep track of their contacts list to merge or delete all the duplicate contacts.
oandbackup - Make backups of selected apps on your device and restore from those backups.
Contacts Backup by Rockstar - Contacts Backup app allows users to create a cloud account using their phone number, name, and email address to save their phone book on a cloud server to restore it in case of data deletion.