A little help,
then back to learning.
Support for TOPIK Loop: Korean Vocabulary.
Contact us
For a vocabulary correction, purchase question, or help with your notebook, email CHS Product Operations.
Include your device, app version, and what happened. For a content correction, include the Korean word and course. Never send a password, sign-in code, full payment card number, or a screenshot containing them.
Purchases and restoration
Use Restore purchases in the app with the Apple or Google store account used for the original purchase. The original store handles payment and refund requests. Contact us if a verified purchase does not unlock its content.
Your learning records
Local records stay on your device. Signing in alone does not mean a notebook has been backed up. Check the app’s sync status before removing the app or changing devices.
Privacy and deletion
Read our privacy information or request account deletion. You do not need to reinstall the app to contact us.
Content sources
Open Settings → Sources & licenses in the app for dictionary attribution, entry-specific sources, adaptation notices, and font licenses.