When comparing AWeber vs Mailgun, the Slant community recommends Mailgun for most people. In the question“What are the best services for sending newsletter/marketing emails?” Mailgun is ranked 6th while AWeber is ranked 15th. The most important reason people chose Mailgun is:
Mailgun is included and configured by default in Meteor.js. So for projects which are built using Meteor, it's very easy to integrate Mailgun.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Regular webinars
Pro RSS-to-email
AWeber can automate sending out a newsletter that's populated by content from your RSS feed.
Pro Good form customization options
Easy to use, detailed form customization options.
Pro Simple form insertion script
Pro A/B testing
Pro Integrates by default with Meteor.js
Mailgun is included and configured by default in Meteor.js. So for projects which are built using Meteor, it's very easy to integrate Mailgun.
Pro Developer-focused
Mailgun has a RESTful API with libraries and code examples in curl, Ruby, Python, PHP, Java, C#, Go.
Cons
Con Sub-par support
It has been reported several times that Mailgun's support is not excellent. Most of the time, they require a lot of time to respond to questions or support queries.