You can see measurable progress in your TOEFL iBT Reading and Listening scores by self-studying with my e-course for strategies.
Option 1: Buy it alone for $99.
Option 2: Buy it in a bundle with 2 other items and discounts for a total price of $132
"How do I know if I should get Option 1 or Option 2?"
If your scores on TOEFL iBT Reading and Listening are below 21 out of 30 points (or if you are new to studying for the exam), you should get Option 2 the bundle that includes my e-course with study schedules and strategies as well as lots of practice digital quizzes for Reading and Listening and special pouches to organize your flashcards and make it easier and faster for you to memorize unfamiliar vocabulary.
If your scores on TOEFL iBT Reading and Listening are regularly above 21 out of 30 points, you should get Option 1.