Khan Academy provides an excellent free option for SAT preparation. It offers a personalized practice plan based on practice scores or previous scores, as well as official resources such as practice questions and comprehensive exams, and video lessons that explain topics in detail. However, it is still recommended to supplement your SAT preparation with additional material from an accredited company such as Kaplan, Princeton Review, or Barons. The practice material provided by Khan Academy is delivered through a computer and doesn't look like the real SAT.
Nevertheless, because Khan Academy exams are published by The College Board, they are generally considered official and accurate material. This is a great advantage of using Khan Academy to prepare for the SAT since The College Board has created the entire course. Khan Academy and the College Board developed Official SAT Practice to create personalized tools that help all students, regardless of income level or background, prepare for the SAT and college level courses. Therefore, the preparation program will be a reflection of the College Board's philosophy for the exam. Khan Academy is a great resource for students who want to get a head start on their SAT preparation. However, it is important to remember that it is not enough to rely solely on Khan Academy for your SAT preparation.
It is recommended to supplement your studies with additional resources from an accredited company such as Kaplan, Princeton Review, or Barons. This will ensure that you are well-prepared for the exam and have the best chance of achieving your desired score.