KasusKnacker – Practice common German grammar topics with targeted exercises

Summary: KasusKnacker is a German grammar practice app designed for users who know the rules but hesitate during usage. It offers focused exercises on cases, articles, prepositions, conjugation, pronouns, and vocabulary flashcards without lengthy lessons or guided flows.

What it does

The app provides on-demand practice through 30,000 exercises with translations and explanations, covering core grammar challenges. It is available on Web, iOS, and Android platforms and delivers 50 free exercises daily without ads.

Who it's for

It targets learners who want to improve specific German grammar skills beyond beginner level and prefer flexible, deliberate practice over structured lessons.

Why it matters

KasusKnacker addresses persistent grammar uncertainties by enabling focused, repeatable practice without distractions or mandatory progress flows.