Make

Make (formerly Integromat) is similar in spirit to Zapier — connecting apps and automating multi-step workflows — but it's built around a visual, flowchart-style canvas that makes more complex, branching automations easier to reason about than Zapier's more linear step-by-step format.

It tends to appeal to newsletter operators who've outgrown simple one-trigger automations and want to build something more involved, like routing new subscribers differently based on how they signed up. It has a steeper learning curve than Zapier in exchange for more control once you're comfortable with it.