Legal agreement

Simple terms for learning with confidence.

These terms explain the rules for using CertiLang, your responsibilities, and what you can expect from our German exam preparation platform.

Last updated: March 19, 2026

These Terms of Service ("Terms") govern your use of CertiLang's website at certilang.com and learning platform at learn.certilang.com (collectively, the "Service"). By accessing or using the Service, you agree to these Terms.

Section 01

Acceptance of Terms

By creating an account or using CertiLang, you confirm that:

  • You are at least 16 years of age.
  • You have the legal capacity to enter into a binding agreement.
  • You will use the Service in compliance with these Terms and all applicable laws.
  • The information you provide is accurate and complete.
If you do not agreeYou may not access or use the Service.
Section 02

Description of Service

CertiLang is an AI-powered German language learning platform designed to help users prepare for TELC, Goethe, TestDaF, DSH, and ÖSD exams. The Service may include:

Conversation practiceAI-powered speaking practice and feedback
Writing analysisCorrections and actionable writing feedback
Speaking evaluationPronunciation guidance and performance feedback
Exam preparationMock exams, exercises, and progress tracking
Educational support, not a guarantee. Results depend on your individual effort and preparation.
Section 03

User Accounts

Account creation

When creating an account, you agree to:

  • Provide accurate and complete registration details.
  • Keep your password and account credentials secure.
  • Notify us promptly of unauthorized access.
  • Accept responsibility for activity under your account.

Account termination

We may suspend or terminate accounts that violate these Terms. You may delete your account at any time through your account settings.

Section 04

Subscriptions and Payments

Free and paid plans

Premium features require an active paid subscription.

Secure checkoutPayments are processed by Stripe.

Billing

  • Subscriptions are billed in advance monthly or annually.
  • Prices are in USD unless otherwise stated.
  • You authorize recurring charges to your payment method.

Cancellation and refunds

  • You may cancel at any time.
  • Access continues until the current billing period ends.
  • New subscribers receive a 14-day money-back guarantee.
  • Later refund requests are reviewed case by case.
Section 05

Prohibited Conduct

To keep CertiLang safe and fair, you agree not to:

  • Share your account credentials with others.
  • Use the Service for an illegal purpose.
  • Reverse engineer or copy our AI technology.
  • Scrape, crawl, or collect data from the Service.
  • Upload malicious content or compromise security.
  • Resell or redistribute the Service without authorization.
  • Use bots, scripts, or other automated access systems.
  • Harass, abuse, or harm other users or our staff.
Section 06

Intellectual Property

Our content

CertiLang's text, graphics, logos, AI models, exercises, and software are owned by CertiLang or its licensors and protected by intellectual property laws.

Your content

You retain ownership of writing samples and voice recordings you submit. You grant us a license to use them to provide and improve the Service, including our AI systems.

Section 07

Disclaimers and Limitations

Service availability

The Service is provided "as is" without warranties of any kind. We do not guarantee uninterrupted or error-free access.

AI limitations

Automated feedback may not always be perfect and should not be the sole basis for exam preparation.

Limitation of liability

To the fullest extent permitted by law, CertiLang is not liable for indirect, incidental, special, or consequential damages from your use of the Service.

Section 08

Governing Law

These Terms are governed by and construed in accordance with the laws of Germany. Any disputes arising from these Terms are subject to the exclusive jurisdiction of the courts in Germany.

Section 09

Changes to Terms

We may update these Terms from time to time. We will notify you of material changes by email or through the Service. Continuing to use CertiLang after changes take effect means you accept the updated Terms.

Section 10

Contact Us

If you have questions about these Terms, contact the CertiLang team:

Ready when you are

Prepare for your German exam with a plan built for progress.