# Lehrer Lämpel vs Number Divider

The clearest difference is update cadence: Number Divider at every 10 days against Lehrer Lämpel's every 15 months. Number Divider also leads on price ($0.99 vs $1.99). Lehrer Lämpel's advantage is iOS requirement (9.3 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Lehrer Lämpel costs $1.99 and Number Divider $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lehrer Lämpel ships an update every 15 months, Number Divider every 10 days. The most recent releases landed on October 26, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Lehrer Lämpel | Number Divider |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 10 days** |
| Size | 8 MB | 5 MB |
| Requires iOS | **9.3** | 17.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Claus Zinn](https://appshunter.io/developer/889016868) | [Christian Urff](https://appshunter.io/developer/415894463) |

## What reviewers say

### Lehrer Lämpel

[App page](https://appshunter.io/ios/app/lehrer-lampel-addition/id920522698)

**Features:** macOS Compatibility

**In-app purchases:** none


### Number Divider

[App page](https://appshunter.io/ios/app/number-divider/id6737426816)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Lehrer Lämpel free?

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

### Is Number Divider free?

Number Divider costs $0.99, with no in-app purchases.

### Do Lehrer Lämpel or Number Divider have ads?

Neither Lehrer Lämpel nor Number Divider shows ads.

### Which is updated more often, Lehrer Lämpel or Number Divider?

Lehrer Lämpel ships an update every 15 months, and Number Divider every 10 days. Most recently, Lehrer Lämpel was updated on October 26, 2026 and Number Divider on October 14, 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.*