Turn numbers into a cosmic adventure.
Kani Math is a complete mental-arithmetic program built on the abacus — nine structured levels, hundreds of drills, and a galaxy-themed universe kids actually want to come back to. Designed for learners, parents, and teachers.
A free virtual soroban abacus, right in your browser.
Drag the beads, switch rod count, show or hide digits. No signup. Works on phone, tablet, and desktop.
Start playing for free — right now.
No signup, no credit card. Open the app in your browser and start with the first level immediately. Subscribe later only if your kid wants more.
- ✅Abacus sandbox — explore the beads
- ✅Foundation + Basic level lessons
- ✅A handful of drills and versus matches per day
- ✅28 languages, on any device
- ✅Works offline — drills keep going, answers sync later
Or start with a free tool
Printable worksheets, a level check, flash cards and a complement chart. Nothing here asks for an account.
What is Kani Math?
Kani Math is a complete mental-arithmetic curriculum built on the soroban (the Japanese abacus). Children first master the physical abacus, then learn to picture it in their mind — a decades-old training path that produces rapid, accurate mental calculation. Kani reimagines that curriculum as a cosmic journey. Every exercise, every milestone, every leaderboard exists to make the practice feel like play — without compromising the rigor of the method.
Mental math, built to last
Visualizing the abacus rewires how children process numbers — improving focus, memory, and calculation speed long after the program ends.
Abacus-first foundation
Every concept starts on a real abacus widget — counting, small friends, big friends, multi-row, multiplication, division — before moving to mental form.
Playful, not childish
Galaxy map, boss battles, versus mode, coins, streaks, daily missions. Game mechanics that reward consistency, not just correctness.
Measurable progress
Parents and teachers see streaks, accuracy, speed, and level progression in dashboards built for adults — not just emoji and fireworks.
28 languages, one app
The app runs in 28 languages — with proper right-to-left typography in Arabic, Urdu and Central Kurdish. Switch language any time — progress and settings stay intact.
Built for families
Parent dashboards, time limits, daily quotas, and a separate teacher face for classroom use. One account can hold multiple kids on the same device.
Nine levels. One journey.
Level isn’t set by age — it’s earned by passing the level test. Every rung of the ladder adds new operations, new digit widths, and new challenges.
Not sure which level fits your child?
Take our 5-minute placement exam. Adaptive, parent-friendly, and built with the same nine-level ladder kids will actually start in. No account, no commitment — just a clear answer with a written advisory.
- ⏱️About 5 minutes, ages 5 and up
- 🎯Three modalities: bead reading, flash addition, columns
- 📜Written advisory with a recommended level
- 🔒Phone number stays private — no marketing lists
Math games that never feel like homework.
Kani Games is a free browser arcade — a math runner, a math snake, and four 3D arcade games. No sign-up, no download, plays on any device.
Now on every device in your hand.
Kani runs in any modern browser, on Android through Google Play and on iPhone and iPad through the App Store — same account, same progress, same cosmic buddy on every device. A native Windows build is coming next.
Take a peek inside Kani.
Eight screens, one mission: make mental math feel like play. Captured on iPhone 17 Pro Max — the same Kani lives on iPad and Android tablets too.
Everything an abacus student needs.
Kani bundles a full learning suite — not a flashcard deck. Each module is tuned to the level the child is on.
Three audiences, one app.
For kids
A cosmic buddy, a galaxy to explore, and daily missions that make practice feel like the reward — not the chore.
For parents
See real progress at a glance. Set time limits, celebrate streaks, and step in when the child wants a human coach.
For teachers
A dedicated teacher portal — generate flash, listen, or column-mode homework, share a single link with students, and review every attempt grouped by student and question.
Read before you start
Short, honest articles on the abacus method, the benefits beyond the math grade, and how parents can support the practice at home.
Browse all articles →Simple plans. Real mastery.
Start free — the first two levels, the abacus sandbox, and a few daily drills are open from the moment you launch the app. When your kid wants more, pick a plan.
Explore the full flow with daily caps on drills and versus. No signup, no card.
- Abacus sandbox (full)
- Foundation + Basic level lessons
- 3 drill sessions per day
- 3 versus matches per day
- All 28 languages
- No ads, ever
- •Levels 3–9 (Elementary → Grand) are locked
- •Unlimited drills and versus matches
- •Parent reports, goals, classroom tooling
Full access for one learner. Cancel anytime — no long commitment.
- All 9 levels
- Flash, Abacus Lab, Versus & Boss Battles
- Galaxy Map & guided lessons
- Parent dashboard
- Web, Android & iOS today; Windows coming soon
- Global & class leaderboards
- Cancel anytime
Two months free vs. paying monthly. One payment, twelve uninterrupted months — ideal for a full abacus school year.
- All 9 levels
- Flash, Abacus Lab, Versus & Boss Battles
- Galaxy Map & guided lessons
- Parent dashboard
- Web, Android & iOS today; Windows coming soon
- Global & class leaderboards
- Priority support
- Early access to new features
Seats for a whole classroom or training center, teacher tooling, tournaments, and onboarding support.
- Classroom rosters & voucher codes
- Teacher portal
- Homework generator + per-attempt tracker
- Bulk student seats
- Onboarding & teacher training
- Custom pacing & lesson plans
Prices shown in US Dollar ($). Checkout is coming soon to your country — we'll notify you when it opens.
Pricing questions? See the FAQ →Local payments are on the way.
We’re still rolling out payment methods in your region. Reach out and we’ll help you get onto Kani in the meantime.
In the meantime, you can try the free plan and we’ll notify you the moment paid plans open up in your country.
Ready to begin the journey?
Create a profile in under a minute. No accounts, no email, no paywall to try it — just pick a buddy, pick a level, and start practicing.
Open the free app →