Questions, answered.

Kani Math is a structured mental-arithmetic program built on the soroban (the Japanese abacus). Kids first learn the bead method on screen, then practise picturing the abacus in their head — accurate mental calculation as a habit, not a trick.

Most learners start between ages 5 and 14. The program ladder is by ability, not age — younger kids begin at Foundation; older kids can place into a higher rung after the free placement exam.

Yes. We teach the soroban method (1+4 beads, small friends, big friends) the same way good abacus centers do; the difference is that we put it on phones, tablets, and the browser.

Open the app in a browser on a computer, or install it on a phone or tablet. There is no signup wall — every level (a few new cards a day), the abacus sandbox, and a daily allowance of drills and versus matches are free. Subscribe later only if your kid wants more each day.

There is a free tier that opens every level, a few new cards a day, with a daily allowance of drills and versus matches. Monthly and yearly subscriptions lift the daily caps, hold up to eight profiles on a device and open the parent dashboard. Prices show on the home page once your country is detected: in Jordanian dinars in Jordan, and in US dollars in most other countries.

Same content, same nine levels — yearly is just billed once a year at a discount. Monthly is paid every month and easier to cancel quickly. Pick whichever matches how you want to pay; everything in the app is the same.

Yes. There is no contract and no minimum term. When a subscription ends the profile drops back to the free tier: progress, coins and streaks stay intact, and the parent dashboard locks until Premium is back.

Yes — centers and after-school programs run on a separate plan priced by student places: the center gets its own portal login, teacher accounts on its email domain, and full access for every student in its classes. The /demo page is the right starting point; we run a 30-minute walkthrough by video call.

The free tier has daily caps on drills, versus matches, sprints, competitions, exams and new level cards, and holds one profile per device. The caps reset every day and can differ by country. A subscription lifts them, holds up to eight profiles on a device and opens the parent dashboard.

A voucher is a code your center hands out that activates a Kani Math subscription on your child’s profile without paying us directly. Centers buy vouchers in bulk and give them to enrolled families as part of the program package.

Open Kani Math in a browser or the Android app, open Premium from the menu, and enter the voucher code under “Enter your access code”. The subscription activates instantly and you’ll see the new tier on the same screen. No payment details are asked for.

Vouchers come from a Kani Math partner center — typically the abacus or after-school program your child is enrolled in. We don’t sell vouchers directly to families; if your center hasn’t mentioned them, ask the center coordinator first.

Each voucher unlocks a fixed window — usually a month or a term, set by the center. When that window ends, the profile drops back to the free tier and another voucher (or a paid subscription) reopens the paid features.

Book a demo from /demo and we’ll set up a center account: its own portal login, teacher accounts on your email domain, and student places to share between teachers. Every student approved into one of your classes gets full access while they stay in it, with no voucher to redeem.

Yes. Re-paste the same voucher code on the new device and the subscription transfers — Kani Math recognises that the code was already activated and adopts the existing profile, so progress, streaks, and settings come with it.

Yes — teachers have their own portal. Once signed in, a teacher can create a class with a join code, approve each student who asks to join, assign Levels skills and sprints that students play in the Kani Math app, and see who finished, who is stuck and who led the week.

Laptops, desktops and Chromebooks with a modern browser, plus native apps for Android phones and tablets on Google Play and for iPhone and iPad on the App Store. All builds are from the same codebase, and a transfer code moves your profiles, with their progress, from one device to another.

Not unless you want to. Open app.kani-math.com in your browser and you can play immediately — no download, no installer. If you prefer a native app, search "Kani Math" on Google Play or the App Store, and use a transfer code to bring your profiles and their progress across.

Most of the practice loop works after the first load on web, and the native Android app handles short connection drops gracefully. Some screens (subscription, voucher redemption, leaderboards) still need a connection. Plan on having internet for the first session of the day.

Yes. Flash Drill, versus matches and class homework include an optional Shout mode where your child says the answer out loud. The words are recognised by the speech service built into the browser or the phone, which may process the audio on its provider’s servers (such as Google or Apple), and the mic permission is requested only when Shout mode is enabled.

With Premium, yes: one device holds up to eight kid profiles side by side, each with its own avatar, level, streak and coin balance, and switching profiles is one tap from the home screen. On the free plan a device holds one profile.

Yes, with Premium. Parents see practice time day by day, accuracy, the streak, skills mastery on each level and a recent-activity feed. It’s built so the adults supporting the learner can see what is actually happening — not just emoji and fireworks.

There is no separate linking step. With Premium, open Parent, under For parents in the app’s menu, while your child’s profile is active, and the dashboard shows that child’s week. With more than one child on the device, switch to each child’s profile to see theirs.

Nine levels, in order: Foundation, Basic, Elementary A, Elementary B, Intermediate A, Intermediate B, Higher A, Higher B, and Grand Level. Each rung adds new operations, new digit widths, and a new mental challenge — the same ladder good abacus centers teach.

If they’re new to abacus, Foundation. If they have prior experience, take the free 5-to-10-minute placement exam at /placement. It climbs the levels in teaching order, from reading the beads to division, and recommends the first level your child has not passed yet.

It depends on practice frequency and on the level: at 10-15 minutes a day the first levels often take a few weeks each, and the later ones take longer. The missions, coins and streaks are designed to keep that daily habit alive without nagging.

Sprints are timed modes in the Kani Math app. Math Sprint asks for typed answers across the four operations, Flash Sprint flashes numbers one at a time, Abacus Sprint shows an abacus to read, and Column Sprint asks for the total of a written column. Each has its own levels and clocks, and a leaderboard for every level. The free mental math drill on this site is a browser version of Math Sprint.

Yes, as practice. The Anzan Exam has mental-arithmetic papers from 10 kyu to 10th dan, and the Flash Exam is a 40-level flash anzan ladder; each opens after a pass of the one before. The Competition mode rehearses a contest paper of 200 questions in 8 minutes. None of them is an official exam, and none awards a certificate. This site has free guides to the same exams, with browser mocks for the first levels.

We collect what is needed for the app to work — profile name (which can be a nickname), age, avatar choice, language, learning progress, and drill results. We don’t ask for school names, addresses, or photos, and we don’t sell data to advertisers.

No. Kid profiles are device-local and need no phone number or email, and parent profiles need none either: with Premium, the parent dashboard shows the active child profile’s progress on the same device.

The /contact page goes to a real inbox — write what happened, what device, and what you expected, and a person replies within a few business days. If it’s urgent, the email at the bottom of this page works too.