Does Not Even Open - Cannot Use!!!

Exactly as the title says. This app is completely broken. Doesnt even open so you cannot even use it!!!
Complete waste of $5! They should have tested this app before releasing it to the public. If they made such a giant mistake in basic functionality, one must wonder how accurate the quality of their answers in these exams truly are... Potential customers, take my lesson learned as a warning: AVOID THIS APP!
I will be demanding my money back due to this Non-Working app! Avoid!

FirstAndLastCustomer about ExamFX Life & Health Exam Prep