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Learn math, science, and computer science through fun, interactive problem solving. diese App is the free app with thousands of hands-on lessons perfect for students, professionals, and lifelong learners of any age.  But don’t just take it from us — see what others are saying. “... teaches math (as well as science and coding) to everyone from professionals looking for a career change to precocious 10-year-olds. “... math and science mind-benders for an ever-growing virtual community of problem solvers. “diese App’s…courses make learning fun and accessible to everyone.  Through interactive lessons and step-by-step explanations, diese App helps grow your skills in critical thinking and creative problem solving.  Your diese App Premium subscription will automatically renew within 24 hours before the end of the current period at the price of the chosen subscription and your credit card will be charged through your iTunes account.  Explore basic to advanced courses in algebra, geometry, calculus, logic, statistics and probability, scientific thinking, physics, quantum mechanics, neural networks, and beyond.  Join over 11 million people using diese App to learn something new, hone their skills, or lay the groundwork for a new career.  Explore 60+ courses designed by award-winning teachers and researchers, covering everything from the basics of algebra, geometry, and physics to cutting-edge topics like artificial intelligence and neural networks.  You can cancel your subscription (i. e. turn off automatic renewal) in the Account Settings section of your App Store or iTunes settings after you have made the purchase.  The skills you’ll learn on diese App can be applied far beyond the classroom or office.  With diese App, you don’t just learn the correct answer — you learn why it’s correct.  Any unused portion of a trial period, if offered, will be forfeited when you purchase a subscription.  From total beginners to professionals, diese App meets you where you are.  Research shows that interactive learning is 6x more effective than watching lecture videos.  The payments related section of your Terms of Use can be found here App. org/terms-of-use/#tou-fees.  Simple, visual explanations walk you through the ideas behind concepts, so that you actually understand them.  These prices are for United States customers, and pricing may vary by location.