Karta is a multitude of different things. In short, it's an "all in one" marketing and business platform. It consolidates all the marketing, page design, and membership services, and email marketing you could ever need into one platform.
If you've ever tried to build a website before, especially one that's dynamic, you know the hassle that comes with all the third party integrations. Mail-chip for your e-mail campaigns, Kajabi for your membership site, and Word-press (don't even get me started on the plugins) to build your physical website. With all of these different integrations going, things can become confusing. Not to mention expensive, as most of these charge some sort of fee to get their premium service.
That's the beauty of Kartra, it takes all of those elements and more and packs them into one platform. Reducing the tech overwhelm felt when managing your online platforms.