# Addition School ! ! vs Lehrer Lämpel

The clearest difference is ads: Lehrer Lämpel at none against Addition School ! !'s shown. Lehrer Lämpel also leads on price ($1.99 vs $4.99) and iOS requirement (9.3 vs 15.0). Addition School ! !'s advantage is device support (3 vs 1). On update cadence and in-app purchases there is nothing between them.

Addition School ! ! costs $4.99 and Lehrer Lämpel $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Addition School ! ! ships an update every 12 months, Lehrer Lämpel every 23 months. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Addition School ! ! | Lehrer Lämpel |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/addition-school/id447548669/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 12 months** | Every 23 months |
| Monetization | Paid | — |
| Size | 13 MB | 6 MB |
| Requires iOS | 15.0 | **9.3** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Horizon Business, Inc.](https://appshunter.io/developer/431586531) | [Claus Zinn](https://appshunter.io/developer/889016868) |

## What reviewers say

### Addition School ! !

[App page](https://appshunter.io/ios/app/addition-school/id447548669)

Master addition with this educational app. It offers practice from single-digit to multi-digit problems, with customizable settings and helpful tutorials. Get step-by-step guidance and hints to build confidence in math skills.

**Highlights:** 1-6 digit addends, Customizable problems, Tutorial animations, Step-by-step solutions, Hint and help buttons, 2 or 3 addends

**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 Addition School ! ! free?

Addition School ! ! costs $4.99, with no in-app purchases.

### Is Lehrer Lämpel free?

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

### Do Addition School ! ! or Lehrer Lämpel have ads?

Addition School ! ! shows ads; Lehrer Lämpel does not.

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

Addition School ! ! ships an update every 12 months, and Lehrer Lämpel every 23 months. Most recently, Addition School ! ! was updated on October 10, 2026 and Lehrer Lämpel on October 11, 2026.

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