Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Invoca - Call tracking & analytics software
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
CallTrackingMetrics - Know who is calling and how they found you. Maximize the return on your advertising.
eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.
Marchex - Marchex is a mobile advertising analytics company that connects online behavior to real-world, offline actions.