What are some alternatives?
When comparing Backup Your Mobile and Contacts VCF, you can also consider the following products
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.
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.
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.
SMS Backup+ - Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP - jberkel/sms-backup-plus
G Cloud Backup - The easiest Android Backup app that protects all your contacts, call logs messages, music, videos, family photos, and other personal (irreplaceable) data to secure, cloud-based servers for Free
Contact Backup For Android - Contact Backup For Android app enables users to send or receive files between all their smart devices without using an internet connection.