MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Listmonk - Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
EZ Texting - EZ Texting provides SMS marketing solutions to businesses of all sizes.
SimpleTexting - SimpleTexting offers SMS and text marketing services for companies of all sizes.