Substack vs Kajabi
Side-by-side comparison of Substack and Kajabi for content creators.
Newsletter publishing and monetization in one place
All-in-one platform for selling knowledge online
What they are
Substack
Substack is a publishing platform where writers host email newsletters and charge subscribers a recurring fee. Independent journalists, essayists, and niche experts use it to build direct audiences without relying on ad revenue. The platform handles payments, delivery, and a basic website automatically. Substack takes a 10% cut of paid subscription revenue on top of stripe fees, which becomes a real cost as an audience grows.
Kajabi
Kajabi is an all-in-one platform where creators build and sell online courses, membership sites, coaching programs, and digital products. It combines a website builder, email marketing, checkout, and basic analytics under one subscription. Solo creators and small teams use it to avoid stitching together multiple tools. The trade-off is that each individual feature tends to be shallower than a dedicated specialist tool.
Which to choose
Full editorial comparison coming soon. For now, check the side-by-side data above and read the individual reviews for Substack and Kajabi.