Just advertising – TOEFL TestBank: Prep & Review Review

It uses the "free" word for luring users to install the app. Once you give your email, you still can't access any test. They just use this chance to advertise their full version $5 for the test you want! Haven't read the review, so didn't know that it's actually not free! Don't bother to install it if you think it's free!
Review by km0513 on TOEFL TestBank: Prep & Review.