Best Shared Contacts

Google Contacts

Zoho ContactManager

Nimble The Simple, Smart CRM for Office 365 and G Suite Teams.

LiveVox More power to the contact center

Prophet CRM The Outlook CRM for Sales and Marketing Professionals

ABBYY Business Card Reader Scan and manage all your business cards and contacts in a flash

SalesJunction Web-based CRM for Small business, keeps team organised and productive

Outlook4Gmail

https://www.planplusonline.com/