# Grammatik Duell vs tabDo!

The clearest difference is review sentiment: tabDo! at 83% against Grammatik Duell's 25%. Grammatik Duell's advantage is update cadence (every 2 months vs every 6 months) and price ($0.99 vs $3.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Grammatik Duell costs $0.99 and tabDo! $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Grammatik Duell ships an update every 2 months, tabDo! every 6 months. The most recent releases landed on September 21, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Grammatik Duell | tabDo! |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Positive reviews | 25.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Paid | Paid |
| Size | 15 MB | 14 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jan Essig](https://appshunter.io/developer/446378172) | [Helbling Verlagsgesellschaft m.b.H](https://appshunter.io/developer/1069879136) |

## What reviewers say

### Grammatik Duell

[App page](https://appshunter.io/ios/app/grammatik-duell/id968774654)

Practice German grammar and spelling through an engaging matching game. Choose from various grammatical areas and difficulty levels to improve your language skills. Compete against yourself or others in this fun, educational duel.

**Highlights:** German grammar and spelling practice, Matching game mechanics, Variable card pairs and player numbers, Adjustable difficulty levels, Read-aloud function, Focuses on grammatical areas, Reward system for motivation

**Features:** macOS Compatibility

**In-app purchases:** none


### tabDo!

[App page](https://appshunter.io/ios/app/tabdo/id1488439711)

This app offers an innovative method for learning music fundamentals like notes and scales through interactive exercises on tablets. It helps children develop an ear for music by playing, modifying, and improvising melodies, progressing from basic motifs to chromatic scales and note reading.

**Highlights:** Develops audiation skills, Trains music listening competencies, Enhances individualized learning, Introduces musical notation, Promotes music-making, Multiple interactive functions

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Grammatik Duell free?

Grammatik Duell costs $0.99, with no in-app purchases.

### Is tabDo! free?

tabDo! costs $3.99, with no in-app purchases.

### Do Grammatik Duell or tabDo! have ads?

Neither Grammatik Duell nor tabDo! shows ads.

### Which is updated more often, Grammatik Duell or tabDo!?

Grammatik Duell ships an update every 2 months, and tabDo! every 6 months. Most recently, Grammatik Duell was updated on September 21, 2026 and tabDo! on October 2, 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.*