Write it by hand
Children write each digit directly on the screen with a finger or stylus — with a free scratch area for carrying and borrowing — instead of tapping a multiple-choice answer.
Educational App · iOS & Android
Focused Math Practice, Written by Hand
MathPen gives children a structured way to practise mathematics using handwriting, clear exercises, and focused learning sessions—without turning every lesson into a game.
Product overview
Math practice, worked out by hand
MathPen is a mobile math app where children solve problems by writing the answer by hand — working through carrying, borrowing, and long division the way they would on paper. Answers are marked as they're written, mistakes can be fixed, and the whole experience stays calm and ad-free.
Real paper methods
Column addition and subtraction with carrying and borrowing, multi-step multiplication, and full long division — the actual method, not just the final answer.
Learn the method
A "watch how to solve" demo shows each step, and gentle hints reveal only the next step — never the whole answer — so children learn how, not just what.
The problem MathPen addresses
Most math apps ask kids to tap the answer. MathPen asks them to work it out.
Many education apps reduce math to multiple choice wrapped in points, streaks, and unlockable characters. Kids can get good at guessing and tapping — without ever practising the method that actually builds understanding.
MathPen brings back pencil-and-paper practice: children write each answer by hand, show their working, and get instant feedback — in a calm, ad-free space that stays out of the way of the actual learning.
- Write the answer by hand, digit by digit
- Room to carry, borrow, and show working
- Instant marking, with mistakes children can go back and fix
- No ads, no characters to collect, no streaks to chase
Main learning areas
The four operations, practised the real way
MathPen focuses on the core arithmetic operations — each with adjustable difficulty (digit range, number of questions, and optional timer) — plus mixed practice. More learning areas are on the way.
Addition
Column addition with carrying, from single digits up to larger numbers. Free to play, with full features.
Subtraction
Column subtraction with borrowing, including practice with regrouping across multiple digits.
Multiplication
Multi-step multiplication with regrouping, scaling up as a child's ability grows.
Division
Full long division on the bracket staircase, with support for remainders as levels increase.
Mixed practice
Combine all four operations in one session for varied, mixed practice.
More on the way Coming soon
Clock, shapes, coordinates, patterns, and money are in development and will appear as new practice areas.
How practice sessions work
A simple, repeatable flow
Every MathPen session follows the same predictable structure, so children know what to expect each time they open the app.
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Choose a topic and set the level
Pick an operation, then set the digit range, number of questions, and an optional timer to match the child's level.
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Write the answer by hand
Solve each problem in the answer boxes, using the scratch space to carry, borrow, or work through long division.
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Get instant marking
Each answer is checked as it's written, so a wrong answer can be spotted and corrected right away.
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Review and fix mistakes
At the end, see first-try and final scores, then tap any question to reopen it — with the original working preserved — and fix it.
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Look back on progress
Completed sessions are saved on the device, so it's easy to look back on how practice is going.
For parents and tutors
Made for parents who care how kids learn
MathPen is calm, ad-free, and free of the game mechanics that turn practice into play. Children work through problems using real methods, and completed sessions are saved so you can see how practice is going.
- No ads, and no characters or streaks competing for attention
- Real paper methods — carrying, borrowing, and long division
- Completed sessions saved so you can review progress
- Simple enough for children to use largely on their own
Screenshot gallery
A look inside MathPen
A preview of the operations menu, a practice session, session results, and the settings that tune each session.
Get MathPen
Structured Math Practice, Ready When You Are
MathPen is available now on the App Store and Google Play. Download it and start practising by hand.
Questions about MathPen?
We're Happy to Help
Reach out with questions about MathPen, and we'll get back to you.