Immensely Helpful – AP World History Exam Prep + Review

I decided to try out this app, and it works perfectly. It's amazing how much content is used, and I like how everything is already separated into categories. I plan to study with it every day. The price to unlock the rest of the categories is a bit steep at 19.99, but it's cheaper than an actual textbook and I plan to purchase it soon!
Review by semper gumby on AP World History Exam Prep +.