Kit

Kit is the best tool in this category for a specific person: someone whose business is an audience. Newsletter writers, course creators, coaches, authors, independent educators. For that person Kit is excellent, and for almost everyone else it is the wrong shape.

The design decisions all follow from the audience. There are no lists — every subscriber is one record with tags, which eliminates the duplicate-contact billing problem that plagues list-based platforms. Emails default to plain text because that is what performs for creators. Landing pages and forms are included on every plan, including the free one, which covers up to 10,000 subscribers — the most generous free tier in the category by a wide margin. Kit Commerce lets you sell a digital product or a paid newsletter without adding Stripe plumbing or a separate membership tool.

The gaps are equally deliberate. There is no A/B testing worth the name, no SMS, no CRM, and no ecommerce revenue attribution. The visual automation builder is clean but simpler than ActiveCampaign’s. If your business sells physical products, or your marketing feeds a sales team, none of Kit’s advantages apply and its omissions become disqualifying.

Our guidance: if you are monetizing an audience with words, start on Kit’s free plan and stay. If you are running a company’s marketing, look at ActiveCampaign, Klaviyo or Brevo instead.