Mr van As

Mr van As creates interactive mathematics software for students and teachers, with a focus on making abstract ideas visual, engaging, and easier to explore. Its suite includes four paid apps, each available separately or through an all-access bundle. GraphForge is a graphing tool for plotting functions, tracing coordinates, detecting asymptotes, and exploring calculus with interactive curves.

TrigMaster brings together a unit circle explorer, identity solver, and triangle calculator. TrigGraphs lets users adjust parameters such as amplitude, period, phase, and shift to see trigonometric functions change in real time. Circle Geometry makes circle theorems tangible through draggable points, animated diagrams, and angle tracking.

Each app is listed at $10 per month or $100 per year, while the bundle is advertised at $30 per month and includes all four apps, updates, and one login. Mr van As also offers a collection of free, no-signup math arcade games, including activities focused on trigonometry, equations, and algebra. The brand shares content on YouTube and provides teacher, pricing, and account resources through its website