What are some alternatives?
When comparing Backup Your Mobile and My Contacts by Captain Tushar, 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.
Contacts VCF - Contacts VCF app enables users to import contacts to the phone’s internal storage or to other storage devices to backup them.
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.