User agent stats: Get to know the devices, browsers, and email clients on which your subscribers read emails. This will help you know what elements to have in your emails and what not to.
Responsive pre-designed templates: Almost 50+% of your recipients open emails on their mobile phones. It is important that your emails fit the mobile screens just like they fit the desktop screens.
Inbox previews powered by Litmus: See how your email looks on different browsers, email clients, devices so you can make necessary changes before sending it out.
Writer is a powerful online word processor, designed for collaborative work.