My Take
This app is great because it has many levels of learning. There is a video, worksheets, a quiz, and extra reading material and games to accompany the lessons.
How I Use It
My students use the BrainPop app on their phones or the iPads as an option in their assignment choices. They can watch the video as many times as they like, and they must show or email me their quiz grade. The video/audio is great for lower level readers and ESL, and the higher level students can read the extra reading material and skip the video if they feel they are already familiar with the material. I use it as a review for previously introduced material.