MathGrid 100 vs Trace & Play

MathGrid 100 — Photo-graded math drills for daily mental math practice. Known in Japan as "Hyakumasu Keisan" (百マス計算 / 100-square calculation), this classic drill is a proven method for building mental math fluency, recommended by Japanese educators such as Hideo Kageyama. MathGrid 100 brings this method to your iPhone with AI-powered photo grading: just snap a picture of the completed worksheet and get an instant score. 【Features】 * Camera-based instant grading — no typing required * Supports addition and multiplication * 9×9 (multiplication) and 10×10 grids * Review and manually edit each cell if needed * Saves up to 20 sessions in history * Points, levels, and badges to keep kids motivated * Daily streak tracking * Up to 4 separate child profiles with individual progress 【Great for】 * Parents tired of manually grading drill sheets * Tracking your child's daily practice * Gamifying repetitive practice to keep kids engaged * Supplementing Kumon, abacus class, or other math curricula ※ Internet connection required (handwriting recognition runs in the cloud). ※ This app shows a persistent banner ad and an interstitial ad after every few gradings.

Trace & Play helps young children learn to write their letters — one happy stroke at a time. A big, friendly letter appears, with a faint guide to trace over. Your child draws right on the screen with a finger or Apple Pencil, and gets gentle, encouraging feedback when they follow the shape. Then it's on to the next letter. Designed for little learners (ages 3–6): • Trace all 26 uppercase letters, A to Z • Smooth, natural letter shapes — including proper curves for C, O, S and friends • Forgiving feedback tuned for small hands — no frustration, just encouragement • Works in any orientation, on iPhone and iPad • Finger or Apple Pencil • Uppercase A–Z is free. An optional one-time purchase unlocks lowercase letters and numbers. No ads or accounts • Settings kept simple and out of little fingers' way Learning to write, one letter at a time.