The A-Level Maths App MathSpire teaches A-Level maths through lesson videos, auto-marked tests, and interactive graphs. Interactivity in graphs is via sliders, manual input, draggable points, and step-by-step explanations. Questions include formulas, matrices, vectors, graphs, equations, and other types of input appropriate to this level of mathematics. MathSpire can be used as supplemental material for schools or for individual revision. A school subscription includes exclusive school features that allows teachers to assign tests and monitor their students' progress at a glance. Comments to contact@mathspire.com welcome.