LEAP OF FAITH: Created by a team of parents and educators, Mind Leap helps take the hassle out of discovering which Android and iOS apps are educational. The apps or sorted across grade levels (Pre-K through 8) and nine categories, including language arts, art, foreign languages, math, music, science and technology, and social studies. Apps are rated on a 5-star scale according to this rubric. If you're currently mining the iTunes store, keep an eye out for these badges that developers can earn with 3-star or better ratings.