# Grammatik Duell vs knotecards

The clearest difference is review sentiment: knotecards at 100% against Grammatik Duell's 25%. knotecards also leads on chart position (#168 vs unranked). Grammatik Duell's advantage is price ($0.99 vs $3.99) and iOS requirement (12.0 vs 17.6). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Grammatik Duell costs $0.99 and knotecards $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, knotecards every 6 weeks. The most recent releases landed on September 7, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | Grammatik Duell | knotecards |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/knotecards/id6748163448/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#168** |
| Size | 15 MB | 1 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Jan Essig](https://appshunter.io/developer/446378172) | [Altymytry Ltd.](https://appshunter.io/developer/1824557021) |

## 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


### knotecards

[App page](https://appshunter.io/ios/app/knotecards/id6748163448)

**Currently charting:** #168 Top Paid · Education (US App Store)

Prepare for your Private Pilot Checkride with flashcards created by Certified Flight Instructors. This study tool covers ACS standards and includes sources for accurate information. Organize cards by knowledge level for efficient learning.

**Highlights:** Flashcards designed by CFIs, Covers ACS Standards, Includes sources for accuracy, Systematic and weighted card viewing, Covers 141 curriculum areas

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grammatik Duell free?

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

### Is knotecards free?

knotecards costs $3.99, with no in-app purchases.

### Do Grammatik Duell or knotecards have ads?

Neither Grammatik Duell nor knotecards shows ads.

### Which is updated more often, Grammatik Duell or knotecards?

Grammatik Duell ships an update every 2 months, and knotecards every 6 weeks. Most recently, Grammatik Duell was updated on September 7, 2026 and knotecards on August 31, 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.*