Getting Started with MathCal: Handwritten Math Practice for Kids

Most math apps ask kids to tap an answer. MathCal asks them to write it. In this post I want to explain what the app is, what a first session looks like, and how a few handwritten problems a day can grow into a lasting practice habit.

What Is MathCal?

MathCal is a math practice app for iPhone and iPad where kids answer every problem in their own handwriting. Fast handwritten calculation drills build the mental math that elementary and junior high school math stands on. They also make pleasant daily brain training for grown-ups.

The app includes 22 drill sets covering single-digit math, column math, fractions, decimals, geometry, and more, along with 59 interactive Montessori lessons in which kids work with their hands: beads for the four operations, a ruler for length, a balance for weight, a hundred grid for percentages, and other materials for other topics. It has no ads and does not track data, so children can use it safely on their own. Three picks are free every day, and everything else opens with a one-time purchase called Unlock Everything (¥1,500 on the Japanese App Store). There is no subscription.

Your First Session

MathCal is available on the App Store for iPhone and iPad. There is no account to create, so once the app is installed, your child can go straight to their first drill. The first drill downloads the handwriting recognition model, so make sure the device is online for that first session. After that, the app works offline.

Step 2: Open today’s free picks

Every day the app offers three free picks: Today’s Drill, Today’s Challenge, and Today’s Lesson. If you enter your child’s birth year and month in the settings, the picks are chosen to match their school grade. Without it, they come from beginner-level drills and lessons. For a first session, Today’s Drill is the natural starting point.

If your child is younger or new to a topic, you can start with Today’s Lesson instead. In the Montessori lessons, kids move beads, a ruler, a balance and other materials on the screen and see how the math works before they practice it.

Step 3: Write the answers by hand

When a problem appears, your child writes the answer directly on the screen with a finger or stylus, just as they would on paper. There is no keyboard to hunt through and no multiple-choice buttons to guess at. Only the problem and their own handwriting.

Why Handwriting Matters

Writing an answer by hand is a little slower than tapping a button, and I think that is exactly the point. Handwriting keeps a child actively producing the answer rather than passively recognizing it. If you are weighing it against paper workbooks or other apps, I compared them in MathCal vs Other Ways to Practice Mental Math.

Turning It into a Daily Practice

Habits grow out of small, repeatable wins, and MathCal is set up to keep those wins small.

Keep sessions short. You can set a drill to anywhere from 10 to 300 questions, picked from a list of steps (10, 15, 20, 25, 30, 40, 50, 100, 200, 300). I suggest starting at the low end so a session never feels like a chore, and raising the count only when your child asks for more.
Lean on the daily picks. Today’s Drill, Today’s Challenge, and Today’s Lesson are free every day, so they make a natural anchor. Open the app, do today’s picks, done.
Collect the stamps. A calendar stamp marks each finished session, so your child can see their progress build up day by day without anyone keeping score by hand.
Practice anywhere. Once the handwriting model has been downloaded, the daily session works in the car, on a trip, or anywhere else with no connection at all.

Where to Go Next

Once the first few sessions are behind you, Ideas for Getting More out of MathCal collects practical suggestions for keeping the habit going, and Who Is MathCal For? can help you decide whether the app fits your family. You can browse every MathCal article on the MathCal tag page.

If you want to try MathCal, you can download it on the App Store.