Comparison

Long Multiplication vs Lehrer Lämpel

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

Head to head
About

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.

Highlights
  • Step-by-step animation and guidance
  • User-defined problems
  • Multi-digit multiplication
  • Decimal support
  • Adjustable difficulty
  • Multiple themes
Features
Read full description

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.

About

Lehrer Lämpel

Features
Read full description

Lehrer Lämpel is an educational app that supports primary school children (usually 3rd grade) to practise their multi-column addition skills. The standard addition method, where columns are processed from right to left, is supported. Steps are performed by easy drag & drop of numbers to the blackboard. The app offers an immediate feedback option where incorrect steps are immediately marked red and where correct steps are immediately marked green. Pupils can ask Lehrer Lämpel for help at any time. Help first removes an erroneously learner step; if there are no errors, a single step is performed towards the solution. All teacher steps towards the solution are followed-up with a step explanation as well. Various degrees of difficulty guided by the number of digits the two numbers can have, and whether carrying operations are required. Supports self-defined addition tasks, and there is a work-sheet, and there are randomised exercises. Supports English, French and German. Available on the iPad, for iOS9 or later. The app is ad-free. No data is being collected. Please consider leaving a review. This helps a lot. Thanks!

Screenshots

Long Multiplication4 screens

Verdict

The call

The clearest difference is update cadence: Long Multiplication at every 7 months against Lehrer Lämpel's every 15 months. Lehrer Lämpel's advantage is price ($1.99 vs $3.99) and iOS requirement (9.3 vs 17.6). On ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Long Multiplication costs $3.99 and Lehrer Lämpel $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Long Multiplication ships an update every 7 months, Lehrer Lämpel every 15 months. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
Long Multiplication versus Lehrer Lämpel: the parameters behind the verdict, then further details
ParameterLong MultiplicationLehrer Lämpel
Price$3.99$1.99 — better
Rating5.0 (2 ratings) — better—
Positive reviews61.5% of reviews—
Number of ratings2 — better—
Update frequencyEvery 7 months — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad — betteriPad
Requires iOS17.69.3 — better
Further details — not scored
Size1 MB8 MB
Age rating4+4+
DeveloperEsa HelttulaClaus Zinn

In-app purchases

None

Long Multiplication

No in-app purchases

None

Lehrer Lämpel

No in-app purchases

Questions

Is Long Multiplication free?
Long Multiplication costs $3.99, with no in-app purchases.
Is Lehrer Lämpel free?
Lehrer Lämpel costs $1.99, with no in-app purchases.
Do Long Multiplication or Lehrer Lämpel have ads?
Neither Long Multiplication nor Lehrer Lämpel shows ads.
Which is updated more often, Long Multiplication or Lehrer Lämpel?
Long Multiplication ships an update every 7 months, and Lehrer Lämpel every 15 months. Most recently, Long Multiplication was updated on October 8, 2026 and Lehrer Lämpel on October 14, 2026.

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