Photomath

Photomath is the most downloaded math learning app in history, acquired by Google in 2023. Point your smartphone camera at any handwritten or printed math problem and instantly receive a step-by-step solution with multiple solving methods explained at each stage. Covers arithmetic through calculus, statistics, and linear algebra. Free tier handles the vast majority of problems including many calculus topics. Photomath Plus ($9.99/mo or $69.99/year) adds animated video explanations, expert teacher solution walkthroughs, and more explanation depth for complex problems. 220M+ downloads across iOS and Android. ⚠ Pedagogical concern: students can use it to copy solutions without learning. Best used for checking work and understanding where a solution went wrong rather than bypassing the problem-solving process entirely.