Beehiiv vs Kit vs Mailchimp: Which Grows a Newsletter Faster?

Growing a newsletter shouldn’t feel slow or complicated. I’ve used all three major platforms—Beehiiv, Kit (formerly ConvertKit), and Mailchimp—across multiple six-figure digital businesses, and the results weren’t even close. This deep-dive breaks down which platform actually helps creators grow faster in 2025, with real data, honest insights, and the exact tech stack I recommend if you want fast, compounding newsletter growth.