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.

AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.

SIM Contacts Manager - SIM Contacts Manager app offers features that let you insert your sim card to your mobile phone to manage, edit, add, and delete your contacts right at your fingertips.

Pushbullet - Pushbullet - Your devices working better together

SMS Backup+ - Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP - jberkel/sms-backup-plus

MyPhoneExplorer - WHAT IS MY PHONE EXPLORER? Imagine if your PC could be used to keep track of your mobile phone? How would you utilize a PC client that connects to your phone? Read more about MyPhoneExplorer.