CertiLang
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Online German Exam Preparation

CertiLang is an online practice platform for German certificate exams. Work through each part of the exam in its real format, then read feedback that shows what you got wrong and why.

Start practising freeSee how it works
  • Free account
  • No credit card
  • TELC, Goethe, ÖSD & TestDaF

Trusted by 1,000+ exam-takers across 20+ countries

CertiLang app screens: B1 reading practice exercises, a TELC reading task and the exam dashboard

Which test are you preparing for?

Free account. No credit card. Choose your exam to start.

Start practising in four steps.

Start practising free

  1. Set your timeline

    Tell us how much time you have and we'll create a personalized plan that adapts to your schedule.

  2. Practice all 4 skills

    Reading, Listening, Writing, and Speaking every exercise mirrors the real German exam format.

  3. Understand with AI

    Our AI explains why each answer is correct in your language. Grammar rules and patterns, available in 13 languages.

  4. Track your growth

    Watch your overall mastery improve. Know exactly which areas need more practice.

PracticeReviewUnderstandImprove

All exercises follow real TELC, Goethe, ÖSD and TestDaF formats

Serious practice for real results.

Learners use CertiLang to practise with purpose, stay on track and walk into their German exam prepared.

German B1 exam certificate with a Gut result and personal details removed
B1 · Gut
German B1 exam certificate with a Gut result and personal details removed
B1 · Gut
German B2 exam certificate with a Befriedigend result and personal details removed
B2 · Befriedigend
German B1 exam certificate with a Befriedigend result and personal details removed
B1 · Befriedigend
German B1 ÖIF Austria exam certificate with personal details removed
B1 · ÖIF Österreich

Start free. Upgrade when you need more.

Free

€0

No credit card required

  • Core reading, listening and grammar practice
  • Basic progress tracking
  • Limited AI interactions
Start practising free

Premium

€9.90/month

Monthly plan · Renews until cancelled

  • Detailed writing feedback and speaking evaluation
  • Full mock tests and scoring
  • Unlimited AI conversations and focused study plan
See Premium plans

New Premium subscribers: 14-day money-back guarantee.

Compare all features and billing options

Before you start.

Free access, exam availability and Premium, explained.

View all questions
Which exams and levels are available?

TELC, Goethe and ÖSD preparation is available from A1 to B2, and TestDaF preparation is available too. DSH practice is coming soon. Use the exam guides to see what each exam covers.

What can I do for free?

Your free account includes core reading, listening and grammar practice, basic progress tracking and limited AI interactions. Full mock tests with scoring, detailed writing feedback and speaking evaluation require Premium, from €9.90 per month. No credit card is needed to start free.

Is the AI feedback an official exam score?

No. AI feedback helps you review your answers and decide what to practise. It is a study aid, can make mistakes and does not replace an official assessment or guarantee an exam result.

Can I cancel Premium?

Yes. You can cancel before your next renewal and keep access until the end of your paid period. New subscribers receive a 14-day money-back guarantee. Check the pricing and terms pages for billing and refund details.

Start with one exercise. See what to improve.

Create your free account, choose your exam and level, and start practising.

Start practising freeNo credit card required

Your free account includes

  • Reading, listening and language elements practice for your exam and level
  • Basic progress tracking
  • Limited AI interactions

Premium is optional, from €9.90 per month.