Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Backup SMS by Piandro - Backup SMS is an app by Piandro that allows you to choose the desired conversation or text message to add it to the backup list to save it for later use.
Google Calendar - Spend less time managing your day & more time enjoying it
Contacts Backup Kit - Contacts Backup Kit is an app by ETO that contains features so you can easily import all the phone numbers in your phonebook between the available devices when you change your smartphone.
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.
Contacts Backup and Restore Contact - Contacts Backup and Restore Contact app enable users to get back all their lost and deleted phone numbers by restoring the available backup file with a single tap.