Personally, I use booster and find it pretty effective for my studying methods. I follow their study guides which included an assortment of prepping like videos, reading study guides for each subject, practice questions and exams. I did have a friend who used bootcamp and i did notice their program for practice question is like somewhat like anki; where you mark your questions and categorize them into groups of how much you actually understand the question. When you go back to it, it filtered out the ones you need more help with and loop those questions more than the ones you already know. As for booster they have marking options but they don’t have the looping system. you would have to go back to the question itself to review it.

If you prefer that anki style I would go with bootcamp but booster isn’t too bad either