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
- ✅All nine levels, a few new cards a day
- ✅A daily allowance of drills and versus matches
- ✅45 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 Math 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
Boss battles, versus mode, coins, streaks, daily missions. Game mechanics that reward consistency, not just correctness.
Measurable progress
Parents and teachers see streaks, accuracy, and level progression on pages built for adults — not just emoji and fireworks.
45 languages, one app
The app runs in 45 languages — with proper right-to-left typography in Arabic, Urdu, Persian and Central Kurdish. Switch language any time — progress and settings stay intact.
Built for families
Parent dashboards with Premium, daily quotas, and a separate teacher face for classroom use. Premium also lets one device hold up to eight children’s profiles.
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-to-10-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 to 10 minutes, ages 5 and up
- 🎯Nine levels in teaching order, from beads to division
- 📜Written advisory with a recommended level
- 🔒No phone number, no email, no account
Now on every device in your hand.
Kani Math runs in desktop and laptop browsers, on Android through Google Play and on iPhone and iPad through the App Store. Profiles live on one device at a time, and a transfer code moves them, progress and all, to a new one.
Take a peek inside Kani Math.
Ten screens, one mission: make mental math feel like play. Captured on iPhone 17 Pro Max — the same Kani Math app lives on iPad and Android tablets too.
Everything an abacus student needs.
Kani Math 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, nine levels to climb, and daily missions that make practice feel like the reward — not the chore.
For parents
See real progress at a glance. Celebrate streaks, and step in when the child wants a human coach.
For teachers
A dedicated teacher portal — create a class, share its code, assign Levels skills and sprints that appear in each student’s app, and see who finished, who is stuck and who led the week.
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 — every level, the abacus sandbox and a daily allowance of drills are open from the moment you launch the app, with a few new level cards a day. 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)
- All 9 levels, a few new cards a day
- A daily allowance of drill sessions
- A daily allowance of versus matches
- All 45 languages
- No ads, ever
- •Unlimited new level cards each day
- •Unlimited drills and versus matches
- •Parent reports and goals
Full access for every profile on the device, up to eight. Cancel anytime — no long commitment.
- All 9 levels, with no daily card limit
- Flash, Abacus Lab, Versus & Boss Battles
- Up to 8 profiles on one device
- Parent dashboard
- Web, Android & iOS
- Global & class leaderboards
- Cancel anytime
Costs less than twelve monthly payments. One payment, twelve uninterrupted months — ideal for a full abacus school year.
- All 9 levels, with no daily card limit
- Flash, Abacus Lab, Versus & Boss Battles
- Up to 8 profiles on one device
- Parent dashboard
- Web, Android & iOS
- Global & class leaderboards
- Priority support
- Early access to new features
Student places for a whole center, teacher accounts, live class arenas, and full access for every student in your classes.
- Class rosters & join codes
- Teacher portal
- Homework in the app + per-student progress
- Bulk student seats
- Onboarding & teacher training
- Custom pacing & lesson plans
Prices shown in US Dollar ($). Cancel or change plan anytime from your profile.
Pricing questions? See the FAQ →Pay securely online.
Checkout opens from the pricing buttons above. Your subscription activates automatically the moment payment goes through.
Payments are processed by Paddle.com, our reseller and merchant of record.
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 →