Earn apples for getting 10 correct answers in a row. Answer quickly to unlock up to 5 reward screens. Control what facts lessons contain, adjust difficulty levels for beginners. These days, school alone isn't enough. Kids need extra practice to have a solid basis for middle and high school. Supplement math lessons and improve grades, instill confidence through early success, and entertain all at the same time. Argus is the most compelling way to give your kids a head start on math or get them caught up with the curriculum fast. Fun graphics and animations keep kids interested. Different kinds of rewards compel them to work harder. And it works!