Long Multiplication vs 영 단어즙
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Long Multiplication
This app teaches and reinforces the long multiplication method with step-by-step animations and guidance. Users can input their own problems and receive immediate feedback, acting as a personal math tutor.
- Step-by-step animation and guidance
- User-defined problems
- Multi-digit multiplication
- Decimal support
- Adjustable difficulty
- Multiple themes
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Long Multiplication helps students learn and practice the standard long multiplication method step by step. The app shows each part of the long multiplication process visually. Students multiply and add one step at a time, and animated numbers move into the correct places. This makes the column method easier to understand and practice. Long Multiplication can be used for classroom teaching, individual practice, tutoring, or homework support. Problems can be generated by the app or entered manually. Features: - Step-by-step long multiplication practice - Multiplicand can have up to 5 digits - Multiplier can have up to 4 digits - Supports decimal numbers - Students can enter their own problems - Current operation for each column can be hidden - Operands for the current operation can be highlighted - Five visual themes - Native interfaces for iPhone and iPad Reviews and Recognition: Reviewed by Wired.com as part of “A Set of Excellent iPhone Math Apps for the Older Child.” Teacher endorsement: “The math apps by Esa Helttula allow students to practice and reinforce the specific computation strategies taught in class, with as much or as little scaffolding as necessary. They also provide individualized feedback to each student, with an immediacy that is not always possible through pencil and paper practice.” — Rita Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada Kelly Tenkely, iPad Curriculum: “The step by step animation and guidance will help students get the column method of multiplication down in no time. The ability to enter their own numbers means that students can input problems from a math curriculum or textbook and work through the step-by-step process with any problem.” Other iDevBooks Math Apps: Other iDevBooks math apps include Column Addition, Column Subtraction, Long Division, Lattice Multiplication, Visual Multiplication Table, Fraction Math, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, Decimal Rounding, and more. Feedback: New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback. Privacy: This app has no ads, no in-app purchases, and does not transmit user data during operation. The app also does not contain links to other apps or to the web.
영 단어즙
This app offers a concentrated approach to learning English vocabulary through daily, bite-sized "juice" extractions. It uses a quiz format to help users memorize words, tracking incorrect answers for targeted review. Various visual styles and an integrated English-English dictionary enhance the learning experience.
- Daily vocabulary "juice" extraction
- Quiz-based learning format
- Tracking of incorrect words for review
- Integrated Oxford English-English dictionary
- Native speaker pronunciation audio
- iCloud data synchronization
- Customizable learning deadlines
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별책에서 영 단어즙 농축액 5000mL를 앱 내 배달해 드립니다. 새로운 영 단어 학습 앱 ‘영 단어즙’입니다. 매일 꾸준히 일정량의 영 단어를 학습할 수 있도록 구성했습니다. ■단어집 아니고 단어즙 암기에는 꾸준한 학습과 반복 말고 달리 방법이 없습니다. 우리가 건강을 위해 매일 챙기는 즙에서 단어즙이라는 개념을 착안한 이유입니다. 하루 세 번 알림을 설정하고 꾸준히 착즙해 보세요 매우 기초적인 단어는 제외하고 암기할 만한 단어들로만 구성했습니다. 그야말로 농축적이고 그래서 쉽지 않습니다. ■학습 아니고 착즙 1회 분량의 단어즙에는 10mL, 곧 10 단어가 들어 있습니다. 총 500회 분량, 5000mL가 착즙을 기다리고 있습니다. 착즙은 문제 풀이 형태로 진행됩니다. 정교하게 구성된 문제를 풀면서 마지막 한 단어까지 쥐어짜 보세요. ■틀린 단어는 흘린 단어 틀린 문제는 암기하지 못한 단어, 곧 흘린 단어로 인식되어 기록됩니다. 그런 단어들은 화면 하단에 후두두 떨어집니다. 흘린 단어들로 가득한 화면을 보고 싶지 않다면 부지런히 암기해서 다시 착즙해야 합니다. ■달거나 쓰거나 바닥에 흘린 단어는 '달거나 쓰거나' 버튼을 통해 재암기 여부를 확인할 수 있습니다. 암기는 달고 미암기는 씁니다. ■즙 스타일 녹즙, 배즙, 칡즙, 포도즙, 석류즙, 브로콜리즙 스타일이 기본 제공됩니다. 그 외 원하는 스타일은 주문 생산 예정입니다. ■유통기한은 별도 표기 스스로 유통기한을 정해서 착즙에 박차를 가할 수 있도록 했습니다. 기본적으로 D-50에서 시작합니다. 유통기한이 지났다고 앱을 쓸 수 없는 것은 아니지만 경고가 발생할 수 있습니다. ■아이폰, 아이패드 동시 착즙 큰 즙, 작은 즙, 어떤 화면에서도 착즙할 수 있습니다. 착즙 데이터는 아이클라우드를 통해 실시간 동기화됩니다. ■옥스퍼드 제공 영영 사전 각 단어에는 우리말 뜻과 함께 옥스퍼드 사전에서 제공하는 영문 뜻과 용례가 수록되어 있습니다. 단어의 쓰임을 더 정확하게 파악할 수 있습니다. 원어민 음성 발음도 제공합니다. 발음을 귀에 익히면 암기도 빨라집니다. 제조사: 별책 불량품은 교환해 드립니다.
Screenshots
Verdict
The clearest difference is price: 영 단어즙 at Free against Long Multiplication's $3.99. 영 단어즙 also leads on review sentiment (100% vs 62%) and iOS requirement (15.6 vs 17.6). Long Multiplication's advantage is update cadence (every 7 months vs every 33 months) and chart position (#188 vs unranked). On rating, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
영 단어즙 is free to download; Long Multiplication costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Long Multiplication against 5.0 for 영 단어즙. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews are what separate them: 62% of Long Multiplication's written reviews are positive against 100% of 영 단어즙's.
Long Multiplication ships an update every 7 months, 영 단어즙 every 33 months. The most recent releases landed on September 6, 2026 and September 17, 2026 respectively.
| Parameter | Long Multiplication | 영 단어즙 |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Positive reviews | 61.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 7 months — better | Every 33 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #188 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Esa Helttula | 별책 |
Customer experience
Long Multiplication
영 단어즙
In-app purchases
Long Multiplication
No in-app purchases
영 단어즙
No in-app purchases







