MathGrid 100 vs CalcMaster

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.

CalcMaster is a math practice app for column arithmetic, times tables, and printable worksheets you can make yourself. Just like solving problems in a paper notebook, you write your working out on the handwriting canvas and enter the final answer with the on-screen keypad. It works smoothly with Apple Pencil or a finger, so practice can happen anywhere. [Great for anyone who wants to] Master carrying and borrowing in column arithmetic Memorize times tables in short, focused sessions Practice at their own pace without paper worksheets Build a steady daily math habit [Column Arithmetic] Practice addition, subtraction, multiplication, and division in classic vertical (column) format. The handwriting canvas features a grid-paper background and an optional column-alignment guide, ideal for learning to line up digits correctly. [Times Tables Master] Choose a specific table (1 through 9) for focused drill, or pick Mix mode to shuffle all 81 questions together. Streak counters, per-table completion dots, and gentle hints help keep motivation high. [Math Worksheets] Generate addition, subtraction, multiplication, and division problems as a PDF and print them as paper drills. Just pick the operations, format (equation or column), difficulty, number of digits, and pages to create your own custom worksheets — handy for homework and home study. [Units Master] A reference mode for units of length, volume, weight, area, and time, shown alongside a sense of real quantity so kids can grasp how units work intuitively. [Compare Master] A game-style quiz for comparing which number or quantity is larger, building a feel for numbers while having fun. [4-Level Difficulty System] Question difficulty automatically expands as you answer more correctly. Lv.1: 2-digit plus 1-digit basics Lv.4: 3-digit plus 3-digit challenges Smooth, achievable progression builds real confidence. [Records Screen] See today's question count, lifetime totals per operation, per-table progress for times tables, and a 7-day bar chart. Your effort is visualized, giving you a clear reason to come back tomorrow. [Instant Feedback] A satisfying animation greets every correct answer, while a gentle shake signals a miss. The app moves to the next question automatically, keeping practice quick and rhythmic. [Designed with Care] Optimized layouts for both iPhone and iPad Simple, distraction-free interface Progress is saved on-device and can be reset anytime Five minutes a day is all it takes to build math confidence. Start your daily practice habit with CalcMaster today.