From Chris Arnold:
AP Hero has specifically customized the AP US History Long Essay App for the new 2015 AP Exam. The Long Essay is the last part of the AP US History Exam although it is also a brand new type of essay for the 2015 exam. AP Hero will walk you through the steps of how to answer the Long Essay as well as give you direction on what types of questions you can expect to see on the AP US History Exam. With this simple and easy to understand app you will be on your way to getting a 5 on the AP US History Exam!