Comparison

Kani Math vs 하루연산

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Kani Math

Features
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Kani Math teaches mental arithmetic the way it has been taught for centuries — on the abacus. Your child moves soroban beads on screen until the shape of every number is familiar, then calculates without them. WHY THE BEADS COME FIRST On a soroban, a number is not a symbol. It is a position. A child who has moved the beads a few hundred times stops reading digits and starts seeing arrangements — and can then add, subtract, multiply and divide on a bead frame that exists only in their head. That is what mental arithmetic training actually is. It is not a gift a child either has or does not have. It is a mental image, and it is built by short, correctly ordered daily practice. WHAT YOUR CHILD DOES • Levels — the guided path. A short lesson, then drills, then a final exam, with history kept for every skill. • Virtual Abacus, Abacus Lab and Abacus Drill — free play on a real soroban, timed target matching, and problems worked out on the beads. • Mental Drill — flash anzan. Numbers appear and vanish while your child holds the running total. Answer by tapping, or switch on shout mode and say it out loud while the app listens (microphone and speech recognition permission required). • Guided drills, one skill at a time — bead reading, the small friends (5-complements), the big friends (10-complements), then multi-digit multiplication and division. • Times Tables — study, quiz, timed and missing-factor modes, until they are automatic. • Math Sprint — how many correct answers before the clock runs out. • Competition — a full contest paper: pick a category from A to I, 200 questions, eight minutes, marked category by category. • Anzan Exam and Flash Exam — ranked practice papers from 10 kyu to dan and 31 flash levels, in order. • Versus and Boss Battle — the same math, played against another player or the computer. Beating someone is a better reason to practise than a progress bar. • Leaderboards, badges, streaks, and coins to spend in the prize shop. The streak is the reason to open the app again tomorrow. THE LADDER Foundation, Basic, Elementary A and B, Intermediate A and B, Higher A and B, and the Grand Level. Nothing unlocks until the rung below it is passed, so no skill arrives before the one it depends on. Placement is by skill, never by age. A free placement check suggests where to start, and you can set the level yourself at any time — a seven-year-old who has done this before and a ten-year-old who has not both begin exactly where they belong. FOR PARENTS With Premium, a parent view lives inside the app, with no second account to create: practice minutes, current streak, skill-by-skill progress and recent activity. Set a weekly goal and read the report. Homework from your child's teacher appears on the Class page — no sign-up needed. With Premium, several children can share one iPad, each with their own profile and progress. The interface is available in 42 languages, including full right-to-left support for Arabic, Persian, Urdu and Kurdish. Lesson text is currently written in English. Kani Math is free to download and contains no advertising. Each day includes a set amount of free practice — drills, versus matches and new level cards — and it refreshes the following day. A few focused minutes most days is the whole method. Made for school-age learners, set up and supervised by a parent or teacher. KANI MATH PREMIUM Kani Math Premium is an auto-renewable subscription. • Kani Math Premium (Monthly) — billed monthly • Kani Math Premium (Yearly) — billed yearly Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://www.kani-math.com/terms Privacy Policy: https://www.kani-math.com/privacy

About

하루연산

Features
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하루 10분, 아이 수준에 딱 맞는 연산 하루연산은 초등 1~6학년 연산을 매일 조금씩 익히는 학습 서비스예요. 매번 새로 만든 문제지를 풀고, 틀린 문제를 바탕으로 다음 회차가 아이 수준에 맞춰 바뀌어요. ■ 아이 수준에 맞춘 출제 틀린 유형은 다시, 충분히 익힌 단계는 한 단계 위로. 별도 진단 시험 없이 시작 단계만 고르면 바로 시작해요. ■ 종이로도, 화면으로도 · 문제지·답안지를 인쇄해 풀고, 사진을 찍으면 자동으로 채점해요. · iPad에서는 Apple Pencil로, iPhone에서는 키패드로 화면에서 바로 풀어요. 손글씨 답은 기기 안에서 읽어요. ■ 보호자가 한눈에 · 아이가 다 풀면 보호자 폰으로 알림이 와요. · 회차별 결과와 단계별 숙련도, 다음 학습 추천을 확인해요. ■ 아이 기기 연결 QR 한 번이면 아이 기기가 연결돼요. 아이는 로그인 없이 풀고, 보호자 메뉴는 PIN으로 잠가요. 한 대를 형제가 함께 써도 기록은 아이별로 따로 남아요. ■ 목표와 칭찬 아이가 정한 목표를 보호자가 약속하고, 이루면 함께 축하해요. ■ 안심하고 쓰세요 · 아이 화면에는 광고도, 추적도 없어요. · 원본 사진은 저장하지 않아요. · 아이·학습 데이터는 계정별로 분리돼요. 문의: info@adriven.co

Screenshots

Kani Math4 screens
하루연산4 screens

Verdict

The call

Kani Math and 하루연산 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Kani Math versus 하루연산: the parameters behind the verdict, then further details
ParameterKani Math하루연산
PriceFreeFree
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size15 MB9 MB
Age rating4+4+
DeveloperTaheelWeb에이드리븐 주식회사

In-app purchases

None

Kani Math

No in-app purchases

None

하루연산

No in-app purchases

Questions

Is Kani Math free?
Kani Math is free to download, with no in-app purchases.
Is 하루연산 free?
하루연산 is free to download, with no in-app purchases.
Do Kani Math or 하루연산 have ads?
Neither Kani Math nor 하루연산 shows ads.

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