Campaign Monitor is an online email marketing application that enables you to create, send, manage and track branded emails for you and your clients. Its preset mobile-ready templates have a lot of customization options and HTML code can be used for formatting as well. One of its unique features is an option to send a split test to see how people react to different subjects and standards. It has an inbox preview tool for all major email clients and it lets you view actual screenshots of your email design. In terms of tracking analytics, it has tracking systems for opens &clicks, social sharing and bounces along with an integration with Google Analytics. It also has 100+ integrations and fully customizable pricing plans.