Nail German. Pass Goethe & telc on the First Try.
The dedicated grammar training engine for CEFR exam candidates. Master the tricky rules where most candidates lose points with 1,647 targeted drills, Leitner spaced repetition, and realistic mock exam simulations.
Ich fahre jeden Morgen [ ··· ] dem Bus zur Arbeit.
Why Reading Grammar Tables Isn't Enough
In real Goethe and telc exams, you have under 60 seconds per question. Passive reading creates the illusion of mastery; active recall builds reflex speed.
Passive Studying
Looking at table charts creates recognition, not recall. In the exam room without notes, grammar rules vanish under pressure.
Taking 3 minutes per sentence on textbooks builds false confidence. In real exams, you have less than 60 seconds per item.
The Ampel System
Missed questions return to Box 1 immediately. Questions are only stamped 'Mastered' after 3 consecutive correct recalls across mixed interval drills.
Realistic 15-question simulations pace your instincts to ~60s per item, matching Goethe & telc test hall conditions.
The Ampel Leitner System
Every question dynamically advances through 3 Leitner mastery boxes until permanent recall is achieved.
Questions missed in training or exams drop to Box 1 immediately. You review the exact grammar formula and re-drill until answered correctly.
Answered correctly once. The engine spaces out repetitions across mixed topics. Requires 3 consecutive correct hits to prove durable memory.
Promoted to permanent mastery. You can instantly produce correct cases and prepositions under official 15-minute exam time pressure.
15-Minute Goethe & telc Exam Simulator
Built strictly to the official Goethe-Institut and telc gGmbH CEFR examination standards.
15-Minute Countdown
Simulates real-world exam time pressure. Paces your decision-making across cases and connectors.
Official 60% Pass Threshold
Calibrated to the exact 60% minimum passing mark (Bestehensgrenze) used by Goethe-Zertifikat and telc.
Diagnostic Score Report
Receive an instant post-exam certificate card with Ampel readiness metrics and review links for mistakes.
Full CEFR Syllabus Coverage (A1–C2)
Structured topic by topic to align with official European language framework standards.
Definite articles, Nominativ & Akkusativ, basic modal verbs, regular verb conjugations.
Perfekt with haben/sein, Dativ personal pronouns, basic Wechselpräpositionen, Nebensätze mit weil.
Adjective declensions, Passiv, Konjunktiv II (wünsche/höflichkeit), Relativsätze, Genitiv basics.
Zweiteilige Konnektoren (sowohl...als auch), Nomen-Verb-Verbindungen, Partizipialattribute.
Passiversatzformen, Subjektlose Passivkonstruktionen, erweiterte Partizipien, indirekte Rede.
Stilistische Nuancen, Modalpartikeln, Funktionsverbgefüge im akademischen Diskurs.
Built for Exam Takers, Not Casual Gamers
See how Nail German compares to legacy grammar apps and mass-market language games.
Invest in Your German Certificate
Retaking a Goethe or telc exam costs €180–€240 per attempt. Choose the plan that fits your exam date, or start with free sample drills.
Weekly Sprint
Intensive cramming for candidates with an exam in the next 7 to 14 days.
Pro Lifetime Pass
Pay once, own forever. Perfect for studying from A1 all the way to B2/C1.
Pro Monthly
Flexible month-to-month access for learners with a targeted test schedule.
Frequently Asked Questions
Everything you need to know about exam calibration, methodology, and access.