Good study materials, app has notable problems
That being said, the app does have some notable problems. As other users have reported, the most important one is that if you leave your practice exam after completing it and want to go back and look at what you got wrong, it will often tell you that you indicated a completely different answer. Your score will be correct, the questions you got right and wrong are accurate, but the responses themselves are not. Additionally, the fact that login information is not shared with the counselingexam.com website is ridiculous, as the materials are the same in both places (the website does have more materials than the app) but you have to choose either the app or the website for your studying, rather than being able to do both. Whether or not the materials are worth the cost of $65/mo is a question of personal preference, financial stability, and how ridiculously expensive the NCBHCE actual test itself is to take and retake. You can probably get a study book for cheaper, but the convenience of having materials easily accessible everywhere you go is not irrelevant.
Extra note, cancelling your subscription to the app is in your Apple ID subscriptions, not within the app itself. I have a full-time job, 2 kids, a house to upkeep, run 2-3x per week, and still needed some self-care. I was able to go through all of the full practice exams and about 75% of the case studies in the one month billing period.