Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
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.
GrexIt - Manage Tasks, Customer Support and Sales right from your Gmail inbox. Turn your Gmail into a powerful collaboration tool.
Drupe - Next generation contact manager and dialer.
Front - The platform for exceptional customer service at scale.
Simple Contacts - Contact lens prescriptions from home