We know how difficult it is to find high-quality apps your kids want to play while earning your stamp of approval - we're parents, too! At BrainQuake, we're doing our small part to take care of this for you. We build our puzzles not only to deliver world-class math learning, but also to be fun for the whole family. Our work is backed up by a growing body of international research that shows playing our apps translates into important real-world improvement in mathematical thinking. So, when you buy a BrainQuake app, you’re not just purchasing a fun game, you’re buying peace of mind.