I think Bootcamp is way too expensive, especially for only a three month subscription. I also recommend using the Destroyer products. They are much much cheaper, and a superior product. You can also check out their study group on Facebook called the 2020 Official DAT Destroyer Study Group. Here the author of the book, Dr. Jim Romano, posts daily problems to test your knowledge. He also answers questions from the book, pretty much 24/7. This is where you can find the (free) Dynamite Biology Review as well.
I personally used the Destroyer products, learned everything in the books, and scored well on my DAT. They have a lot of free resources too, so I would check out the Facebook page.