These two brands sit on opposite sides of the same category, which makes them easy to confuse until you look closer.
Graphy is a course and cohort platform: you build the content, brand the storefront, and Graphy handles hosting, payments, and delivery — including live cohort-style classes, not just self-paced video. It's built for the person selling the course, not the person taking it.
Mammoth Club is the other direction entirely: a membership giving access to a large existing library of tech, AI, and creative-skills courses, plus assets and templates. Some user reviews note inconsistent production quality across such a large catalog, which is worth weighing against the breadth of what's included — read a few reviews on your specific topic of interest before committing.
If you're building something to sell, Graphy is the tool. If you're looking for something to learn from, Mammoth Club is. Full listings for both sit in LMS & training platforms.