Each of those tactics requires different tools when it comes to creation of the source email, dissemination to specific recipients, and integration with other back-end systems, notably the accounting system, the customer relationship management (CRM) system, and possibly even the inventory management system. You can manage your contacts by simply keeping a list of names and email addresses, or you can create a complex database full of subscribers segmented by demographic slices and engagement levels. Which method you choose really just depends on how much of your budget you're willing to allocate toward the email marketing software that can give your company the features it needs.
Drip offers a very small forever free plan, along with a two-week free trial for the Basic and Pro membership levels. If you choose to continue service after those two weeks, then your card will be charged. There is a 30-day refund window from when you start your service, but it’s up to the discretion of Drip whether you will receive a full refund.
Mailchimp offers a forever free plan which allows you to send 12,000 emails for up to 2,000 subscribers. This plan is fairly limited because you don’t get features like send-time optimization, advanced segmentation, multi-variate testing, etc. You are also required to display their branding in your email. Last but not least, support is restricted to email only which is fine if you’re a hobbyist but as a serious business, you need reliable support that you can count on.