You know the tables. You still freeze on dem or den halfway through a sentence. KasusKnacker drills cases, genders, prepositions and verbs inside real sentences: 50 free exercises a day, no ads.
50 free exercises daily No ads, ever
Pick a topic, then fill the gap in a real sentence. Get it wrong and the app files it for review later. Ten questions per lesson.
Pick a category and start a lesson
Flashcards for vocabulary and phrases, with audio
Grammar RPG: the right case wins the fight
Sentence Scramble: drag the words into German order
Ad-free, and it remembers every mistake you make.
No banners and no video breaks. Nothing interrupts a lesson.
Drill Nominativ, Akkusativ, Dativ and Genitiv until dem and den stop being a guess.
Flashcards for vocabulary and Redewendungen, nearly all with their own audio clip.
XP and daily streaks, plus a leaderboard if you like comparing. Miss a day and a streak freeze covers you.
Every wrong answer goes into a review queue and comes back until it sticks.
50 exercises a day for free. Premium removes the daily cap and unlocks the reference lessons.
Filter to your level or mix them. A1 through C2.
Hangman, Falling Words, Sentence Scramble and a grammar RPG where the wrong case costs you the fight.
Runs in the browser and as an app on iOS and Android. Your progress follows you across them.
Twelve areas to drill, each with its own exercises and games. The long explanations live in the grammar guides. This part is just practice.
You get a sentence with a gap: Ich gebe ___ Kind den Ball. Choose dem or den. All four cases show up this way, inside sentences you would actually say.
Der, die or das, one noun at a time. There is also a lookup dictionary with over a thousand nouns when you just need to check one.
Strong, weak and mixed endings. Ein neuer Tisch but der neue Tisch, and that difference is what you drill here.
Regular and irregular verbs across the tenses. There is a conjugator tool too, for when you only need the table for one verb.
Which preposition takes which case. Wechselpräpositionen are the awkward ones: in das or in dem, depending on whether you are moving.
Pronouns in every case, including the reflexive and relative ones. Mir or mich, ihm or ihn.
Mein, dein, sein, ihr, and the endings they pick up in each case. Meinem Bruder takes some getting used to.
Themed decks with audio on every card, and a few different ways to work through each one.
Redewendungen and the phrases that do not translate word for word. Each one comes with a short grammar note.
Hangman, Falling Words, Sentence Scramble and a grammar RPG. Same grammar, different pressure.
Two-speaker conversations at the doctor or the bakery. Listen, follow the highlighted line, then answer questions on what you heard.
Get 10 questions every day. Everyone gets the same daily set, so you can compare results and keep your streak alive.
Declension tables and worked examples. Every guide links straight to the matching drills.
KasusKnacker is for anyone who knows the German grammar rules but struggles to apply them when speaking. If you think "Is it DEN or DEM?" mid-sentence, this app helps you practice German until it feels natural.
Students preparing for Goethe, TestDaF, or telc exams who need quick grammar drills.
Living in Germany and want fluent grammar without taking another course.
Self-learners stuck at B1/B2 who understand grammar but can't apply it fast enough.
Anyone who learned the rules but needs practice to make them stick.
Yes. 50 exercises a day, free forever, and no ads anywhere in the app. Premium removes the daily cap and unlocks the reference lessons. That is the whole difference.
Nominativ marks the subject and Akkusativ marks the direct object. Der Mann sees something; you see den Mann. Only masculine nouns change their article, which is why the other genders feel easy until Dativ turns up.
Nine prepositions that take either Akkusativ or Dativ depending on meaning. Movement takes Akkusativ, position takes Dativ: ich gehe in die Küche versus ich bin in der Küche.
No. The exam section drills the grammar those exams test, from A1 to C1, and finishes with a timed readiness check. It is not a mock exam, and we are not affiliated with Goethe, telc, or any other exam provider.
Flashcards, dialogues and stories play audio files we generate ahead of time, so the pronunciation stays consistent. Your device's own voice only steps in when a word has no file yet.
No. The count belongs to your account, so every device shares the same 50. It resets at midnight UTC.
A1 through C2. Filter to a single level, or mix them.
50 exercises a day, free. You can start without making an account.
From the same independent developer
Practice French is the same idea for French learners: calm grammar drills and short stories.
