MailerLite is the most popular alternative to Mailchimp for small businesses that find Mailchimp too expensive or too cluttered. The interface is the cleanest in the category, the free plan covers 250 subscribers and 2,500 monthly emails, and the entry Comfort plan is among the cheapest paid starting points here.
Comfort covers basic automation and a send allowance of ten times your subscriber tier; the Power plan unlocks advanced workflows, A/B testing, a custom HTML editor and unlimited sends. SMS is not part of the marketing plans (it sits in a separate transactional product), which matters if you want email and SMS on one bill. MailerLite publishes prices up to 200,000 subscribers; above that it is a custom Enterprise quote.
MailerLite was founded in 2010 and is headquartered in Vilnius, Lithuania.