HubSpot Academy is HubSpot's own official, completely free learning platform, with video lessons and quizzes mapped directly to the Inbound Marketing exam, produced by HubSpot itself. As the official source, alignment with the exam is guaranteed, and the price — free — is hard to beat.
What HubSpot Academy doesn't do is track your individual readiness over time. Content is organized in a fixed sequence with end-of-module checks, but there's no diagnostic upfront and no evolving prediction of your pass likelihood as you progress.
Edureify's curriculum is built on the same official material, but the Diagnostic identifies specifically which of inbound marketing methodology — content, lead generation, and nurturing you're weakest on, and the roadmap keeps you there until your Readiness Score improves — which working through official modules in order doesn't measure.