Photomath is a mobile app that uses computer vision and AI to scan, recognize, and solve mathematical expressions (including handwritten ones), providing step-by-step explanations. It serves as a “camera calculator + tutor” rather than a full curriculum platform. Photomath operates via a freemium model (free features + paid “Plus” subscription), and has grown massively in reach, recently being acquired by Google. Key competitive angles: near-instant problem solving and explanation vs. concerns about overreliance, academic integrity, and limited breadth of pedagogy.