不能用，呵呵

Most of the explanations did not correspond to the question presented. So, when an incorrect answer was chosen, the explanation for the correct answer was for an entirely different question.

Questions are superficial and do not reflect the test. Save your money and make some flash cards. This brought little value to helping me pass the CISSP exam.

I purchased the app today and for some weird reason my subscription information was deleted after restarting the app. The restore subscription option failed so I feel cheated. Buy at your own risk.... I’m hoping to get my $39 refunded.

Unable to find some of the questions or answers in the ISC2 study guide

Download new updated app the if your not careful renews in 3 days at $47.99!!!!! Scammers!!!!

This app has been real helpful in my studies.

Learning The detailed answer explanations in combo with repetition is key to learn the foundation of the concepts

I paid $40 and was about 60 questions away from being done and the app has kicked me off. I try to go back in and restore my purchase to access my progress and nothing happens. I have 8 days until my exam. This is unacceptable and I deserve my money back.

A lot of these questions are written and phrased poorly. With the price of the ultimate pack, I expected questions that are structured well and accurate - I had three or four in a row that were 100% disputable or inaccurate and I expect more from a test prep tool at this price point.