Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Sonetel - Sonetel is a communication app that lets you make an international business call at the cost of local calls.
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Facebook Messenger - Facebook Messenger is a faster way to message.
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.