A simple and effective maths app designed to support the practise of basic addition and subtraction facts to 10, 20 and 100. My children found it straight forward to use and motivating. Choose one of the avatars supplied when you begin or take a photo to use instead. Enter your name and age and you’re off. You can select your challenge and time limit and then play against your own records or against others – so this could be used easily on a class-based device. It’s definitely worth considering having on a parent’s smartphone, child’s tablet or school iPad.