All 4 exam skills covered
Complete preparation in one placeTrain reading, listening, writing and speaking—with focused grammar support and realistic tasks for your exam level.
Prepare for TELC, Goethe, TestDaF, DSH or ÖSD with realistic practice, clear feedback and a study plan focused on your weak points.




Understanding beats memorising. CertiLang doesn't just tell you what's wrong—it shows you why and what to improve next.
Train reading, listening, writing and speaking—with focused grammar support and realistic tasks for your exam level.
Understand the reason behind every correction. Turn each mistake into a lesson you can apply to your next answer.
Prepare with tasks modelled on TELC, Goethe, TestDaF, DSH and ÖSD—so the real exam already feels familiar.
See your weak spots across every skill and follow clear recommendations that keep your preparation focused.
Build every exam skill with realistic tasks, focused feedback and a clear view of what to work on next.
Work through realistic texts and learn how to find the evidence behind every correct answer.

No guessing. No wasted time. Know your weak points, fix them with real feedback, and walk into your exam confident.
Complete a short assessment that maps your strengths and weaknesses across reading, listening, writing and speaking. No guessing—data from day one.
See exactly which question types and skills cost you marks. Your study plan targets these gaps first, not random exercises.
Every writing and speaking answer gets specific corrections. Every mistake becomes a lesson. Walk into your exam knowing you've fixed what matters.
Learners use CertiLang to practise with purpose, stay on track and walk into their German exam prepared.





1,000+ learnerspreparing for German certification
The AI writing feedback was like having a private tutor whenever I practised. I understood my mistakes and passed on my first attempt.
The mock exams felt incredibly realistic. When I sat the real exam, the structure was familiar and I felt completely prepared.
Speaking practice with instant pronunciation feedback helped me work on the right details and overcome my biggest weakness.
CertiLang showed me the grammar patterns costing me points. My plan stayed focused, and I always knew what to practise next.
Explore CertiLang without paying. When you are ready for unlimited coaching and full exam simulation, choose a Premium duration that fits your exam date.
Start practising and learn how CertiLang fits into your routine.
Choose one, three, six or twelve months based on your timeline.
Real questions from learners considering CertiLang. No fluff—just honest answers about what we do and don't do.
View all questions94% of CertiLang learners pass their exam on the first attempt. The difference is focused practice: we show you exactly where you're losing marks and help you fix those specific problems before exam day.
Most apps teach vocabulary or grammar in isolation. CertiLang diagnoses your actual weak points, gives specific feedback on your writing and speaking, and builds your study plan around what's costing you marks—not generic exercises.
Consider the alternative: €250+ exam fee, months of waiting for a retake, and delayed visa or job prospects. CertiLang costs less than a single tutoring session and gives you unlimited AI feedback on every answer.
CertiLang complements teacher instruction perfectly. Use it for unlimited practice and feedback between lessons. Your teacher handles conversation and motivation; CertiLang handles repetition and correction at scale.
Yes. CertiLang's diagnostic shows your weak points immediately, so you focus on what matters most. Many learners use the final weeks for intensive, targeted practice and enter the exam room confident.
You're covered by our 14-day money-back guarantee. Try Premium, use all the features, and if you're not seeing progress, get a full refund. No questions asked.
Clear, practical guidance for choosing a certificate and preparing for what exam day actually asks of you.
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A direct comparison of recognition, format, costs and retake rules to help you choose the right preparation path.
See your weak points in minutes. Know exactly what to fix. Walk in ready.
Built around TELC, Goethe, TestDaF, DSH and ÖSD.