MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Decision.io - Decision.io is an interesting platform that provides you the simple features to develop the app or an integrated workflow without using any program language or code.
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
Codeless Platforms - Codeless Platforms is a web-based platform that allows you to develop various applications and business processes without any coding and programming.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
RapidClipse - RapidClipse is a web-based development platform that allows you to build the app with Java and provides you with a hustle-free configuration.