My DD used this online ACT Prep tool called Shmoop and got a phenomenal score. Its interesting in that it incorporates pop culture references into lesson plans and explains the concepts in a simple, clear, relatable manner which helps kids retain information for much longer periods of time than they would otherwise. It also had tons of practice drills, exercises, as well as full-length exams and general ACT exam strategies, which really familiarized her with the testing patterns. She said that being able to practice and learn whenever she wanted, rather than being constrained by the time stipulated by traditional ACT prep classes made a huge difference.