What are some alternatives?
When comparing G Cloud Backup and My Contacts by Captain Tushar, you can also consider the following products
oandbackup - Make backups of selected apps on your device and restore from those backups.
X-Transfer - X-Transfer is an app by WebToGo that comes up with features to help you in performing data transfer between your smart devices in a few simple steps.
AptBackup - With AptBackup, you can backup the Cydia apps on your jailbroken iOS device.
Save contacts - Save contacts app provides features through which users can select the desired data to create the backup in a variety of different formats.
MyBackup - MyBackup Pro is the best Android backup as reviewed by PC World, ZD Net, CNet, and more. Easiest Android back up.
Contacts VCF - Contacts VCF app enables users to import contacts to the phone’s internal storage or to other storage devices to backup them.