Buy it on sale, but only as part of a broader prep plan. And always, always cross-check with official ACT materials.

Overall Rating: 3.8/5 Best for: Self-motivated students on a tight budget who need content review and strategy drills, not adaptive learning or official proctored exams. Not ideal for: Students seeking a structured, personalized, or adaptive platform (like Kaplan, Princeton Review, or ACT’s official channel). First Impressions: The “Coursera for Cramming” Vibe Unlike the polished, intimidating dashboards of major test prep companies, Udemy’s interface is straightforward—almost too simple. You buy a course (often on sale for $12–$20, though “original” prices hover around $100–$200), and you get a series of video lectures, downloadable PDFs, and multiple-choice quizzes. There’s no AI tutor, no live class option (unless specified), and no progress tracking that adapts to your weak areas.

At that price, you could buy 3 different Udemy courses (one for math strategies, one for reading speed, one for full tests) and still spend less than a single session with a tutor.