# Column Addition vs Lehrer Lämpel

The clearest difference is update cadence: Column Addition at every 8 months against Lehrer Lämpel's every 23 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.

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

Column Addition ships an update every 8 months, Lehrer Lämpel every 23 months. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Column Addition | Lehrer Lämpel |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/column-addition/id339440193/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 23 months |
| Monetization | Paid | — |
| Size | 15 MB | 6 MB |
| Requires iOS | 17.6 | **9.3** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Esa Helttula](https://appshunter.io/developer/339440196) | [Claus Zinn](https://appshunter.io/developer/889016868) |

## What reviewers say

### Column Addition

[App page](https://appshunter.io/ios/app/column-addition/id339440193)

This educational app teaches and reinforces the column addition method with an interactive interface. Users can solve custom or random problems with adjustable number sizes and receive visual feedback on their progress. It includes optional jigsaw puzzles as a reward for solving problems.

**Highlights:** Interactive column addition learning, Customizable number of digits, Random and custom problem generation, Visual feedback and animations, Optional jigsaw puzzles, Adjustable interface colors and animations

**Features:** macOS Compatibility

**In-app purchases:** none


### Lehrer Lämpel

[App page](https://appshunter.io/ios/app/lehrer-lampel-multiplication/id1013848623)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Column Addition free?

Column Addition costs $3.99, with no in-app purchases.

### Is Lehrer Lämpel free?

Lehrer Lämpel costs $1.99, with no in-app purchases.

### Do Column Addition or Lehrer Lämpel have ads?

Neither Column Addition nor Lehrer Lämpel shows ads.

### Which is updated more often, Column Addition or Lehrer Lämpel?

Column Addition ships an update every 8 months, and Lehrer Lämpel every 23 months. Most recently, Column Addition was updated on October 8, 2026 and Lehrer Lämpel on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*