# Calculightning 2 vs Lernserver

The clearest difference is price: Lernserver at Free against Calculightning 2's $12.99. Calculightning 2's advantage is in-app purchases (none vs 4) and iOS requirement (8.0 vs 15.6). On device support there is nothing between them.

Lernserver is free to download; Calculightning 2 costs $12.99 up front. Lernserver sells 3 one-off in-app purchases. Calculightning 2 asks for nothing beyond the download.

## The numbers

| Metric | Calculightning 2 | Lernserver |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calculightning-2-maths/id1078934052/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 17 months |
| Monetization | Paid | — |
| Size | 250 MB | 58 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ernst Klett Verlag GmbH, Stuttgart](https://appshunter.io/developer/751540887) | [Lernserver](https://appshunter.io/developer/1481559642) |

## What reviewers say

### Calculightning 2

[App page](https://appshunter.io/ios/app/calculightning-2-maths/id1078934052)

This educational app helps second graders practice math skills with over 1000 tasks. It utilizes an award-winning pedagogical method developed over 20 years, now available in English and German.

**Highlights:** 10 general task types, Over 1000 practice tasks, Award-winning pedagogical method, English and German language options, Independent practice for children

**In-app purchases:** none


### Lernserver

[App page](https://appshunter.io/ios/app/lernserver/id1481559643)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Testeingabe (LS-Team) | $1.99 | one-time |
| Diagnose (kompakt) | $3.99 | one-time |
| Diagnose und Testeingabe | $5.99 | one-time |


## Frequently asked questions

### Is Calculightning 2 free?

Calculightning 2 costs $12.99, with no in-app purchases.

### Is Lernserver free?

Lernserver is free to download, with in-app purchases available.

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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.*