Terms of Service

Zertio provides AI-generated practice tests for German language certification, taken in practice or timed-simulation mode, with automated and self-assessed scoring.

You are responsible for keeping your login credentials confidential and for activity under your account.

Tests are claimed using credits, which can be bought in packs. Purchased credits (digital content) are made available immediately.

By starting to use a purchased credit pack immediately, you request that performance begin before the end of the 14-day withdrawal period and acknowledge that you thereby lose your right of withdrawal once performance has begun.

You may not misuse the service, attempt to disrupt it, or use it unlawfully.

"telc" is a registered trademark of telc gGmbH, Frankfurt am Main. Zertio is an independent practice tool and is not affiliated with, endorsed by, or certified by telc gGmbH. The name is used only to identify the exams our practice tests prepare you for. Practice tests do not constitute official examinations.

The service is provided on an "as is" basis. Practice results are indicative and do not guarantee any official examination outcome.

We may update these terms; material changes will be communicated. German law applies. Contact: matijabojovic@zertio.de.