S: Stemory – AI Math Tutor

Our app is now S: Stemory—rebuilt to help you see why math works through voiced animated lessons and step-by-step AI guidance for the US Grades 6–12 curriculum. • Existing subscribers: Your active subscription automatically carries over to Stemory Premium with full benefits (you can also tap "Restore purchases" anytime in Settings). • 199 Semester 1 US Math lessons across Grade 6, Grade 7, Grade 8, Algebra 1, Geometry, Algebra 2, Precalculus, and Calculus, with voice narration and subtitles in English and Vietnamese. • Interactive Explore mode and in-lesson steps where you can adjust sliders, points, and parameters directly on screen. • Step-by-step AI tutor: type a question, ask inside any lesson, or snap a homework photo, and choose between Step-by-step hints or a Full solution. • Free every day with no account required: 3 animated lessons and 3 AI questions per day, or unlock unlimited lessons and more daily AI help with Stemory Premium.