New: Exam Training. Grammar tracks from A1 to C1 with telc-style gap texts and error spotting, plus a timed readiness test that shows which topics still need work.
Master German Grammar through Practice!
Struggling with German grammar mechanics? From Der, Die, Das and Cases to Prepositions, Possessives and Verbs, KasusKnacker is your dedicated training ground for mastering the hardest parts of the German language.
We focus on deliberate practice: targeted exercises with instant feedback and clear explanations that build your grammatical intuition and muscle memory.
Why KasusKnacker?
- 100% Ad-Free: Enjoy a distraction-free learning environment.
- Fair Freemium: Practice daily for free or upgrade for unlimited access.
- Exam Training: Grammar tracks from A1 to C1 with telc-style gap texts, word-bank tasks, error spotting and sentence rewrites. A timed readiness test shows which topics still need work. Useful when you're preparing for Goethe-Zertifikat, telc, DTZ or TestDaF.
- Targeted Case Training: Drill deep into dem, den, des, and der until it becomes second nature.
- Prepositions & Pronouns: Know exactly which case to use with every preposition.
- Possessives Mastery: Practice mein, dein, sein etc. across all cases.
- Verb Conjugator & Practice: Look up conjugations and practice verbs until they are automatic.
- Vocabulary Flashcards: Practice your German vocabulary with our new flashcard system.
- Phrases & Idioms: Learn common German phrases and idioms with flashcards.
- Article Mastery: Stop guessing genders. Practice Articles until they stick.
- Adjective Endings: Master the logic behind adjective declensions for every case.
- Phrasebook: 260+ real-life German phrases with audio across 15 everyday topics — doctor visits, banking, housing and more.
- Stories: Short, illustrated German stories with audio, dictation and comprehension questions — read and listen at your level.
- Mini-Games: Hangman, Falling Words, Sentence Scramble and a grammar RPG battle.
- From A1 to C2: 20,000+ exercises in hundreds of themed lessons, from your first articles to advanced grammar.
- Gamified Progress: Earn XP, build daily streaks, and compete on leaderboards.
- Daily Challenge: Compete daily, keep your streak alive, and see how you stack up.
- Study Groups: Create private groups, share a join code, assign lessons, and compete on a shared weekly leaderboard. Only the creator needs Premium.
- Smart Review & Bookmarks: Save difficult exercises, revisit them later, and review mistakes when they are due.
Whether you're prepping for an exam or just want to speak without pausing to think about case endings or prepositions, KasusKnacker gives you the reps you need.
Download now and start cracking German grammar today!
KasusKnacker is an independent grammar-practice app. It is not an exam provider or testing centre, and it is not affiliated with, authorized by, sponsored by or endorsed by Goethe-Institut e.V., telc gGmbH, the Federal Office for Migration and Refugees (BAMF) or g.a.s.t. e.V. Goethe-Zertifikat, telc, Deutsch-Test für Zuwanderer (DTZ) and TestDaF are trademarks of their respective owners. KasusKnacker provides focused grammar review, not complete exam preparation.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
App reviews are not a thing i do but this one is worth it. This app fills a serious gap in budget German learning tools with real explanations and opportunities to drill a lot of the complicated concepts other apps skip past or can’t handle. This app is currently very reading-centered in its instruction and practice (vs speaking or listening like most other apps) which is especially helpful for academic learners looking to move quickly to advanced grammar while focusing tightly on reading skillsBut what inspired my review was the response to in-app feedback I submitted. I sent in some comments on some weak points on the flash cards. When I logged in a day or two later I had a message from the developer saying they were rolling out new features to address my concerns within the next one to two days! And those changes are already live with this version update. And demonstrating that responsiveness wasn’t a fluke, I found and reported a bug yesterday and had a new notification today with a personal thank you. Even for a new app this seems exceptional in my experience. I’m quite pleased at how handy the app is already and delighted to find a developer that’s so invested in the practical usefulness and usability of their product.
Developer Response
Thank you so much for taking the time to write this. Tt genuinely made my day! Hearing that the explanations and drills are helping you move toward advanced reading grammar is exactly what I hope KasusKnacker delivers. And I'm really glad the feedback loop has been working for you; your comments on the flashcards and that bug report directly helped make the app better, so thank you for that. Please keep the ideas and reports coming anytime at support@kasusknacker.com. Wishing you continued success with your German!
New: Exam Training. Pick a level from A1 to C1, work through a focused grammar track, then take a timed readiness test that points you at the topics you still need to review. It includes telc-style gap texts, word-bank tasks, error spotting and sentence rewrites.
KasusKnacker is an independent grammar-practice app and is not affiliated with any exam provider.
Thanks for learning with KasusKnacker!
Version 1.107.0
The developer, Toba UG (Haftungsbeschränkt), indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Purchases
Contact Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Toba UG (haftungsbeschrankt)
Size
93.8 MB
Category
Education
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
