Summatic is an app for STEM students, designed and developed by Cambridge academics. Clear explanations and interactive examples take you on step-by-step journeys through exam topics, so you can master difficult concepts easily. Our resources are tailored to school maths (A-level, IB, (I)GCSE with full exam board coverage), and university courses including economics, physical sciences, biosciences, and business courses, to help you learn exactly what you need to succeed in your course. Key fea