What are some alternatives?
When comparing X-Transfer and G Cloud Backup, you can also consider the following products
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.
oandbackup - Make backups of selected apps on your device and restore from those backups.
My Contacts by Captain Tushar - My Contacts is an app by Captain Tushar that comes up with features to help you in managing your contacts list so you can effortlessly delete or edit existing contacts.
AptBackup - With AptBackup, you can backup the Cydia apps on your jailbroken iOS device.
Contacts VCF - Contacts VCF app enables users to import contacts to the phone’s internal storage or to other storage devices to backup them.
Lucky Patcher - Lucky Patcher is a great Android tool to remove ads, modify apps permissions, backup/restore apps, bypass premium applications license verification, and more.