Privacy Policy

Last updated: March 14, 2026
Seçkin Sefa Durası ("Developer") built the LangMaster app ("App") as a commercial application. This page informs you of our policies regarding the collection, use, and disclosure of personal information when you use the App.

Information We Collect

When you sign in with Apple or Google, we receive your name, email address, and a unique identifier from the authentication provider. We also store your learning progress, preferred interface language, target language, and daily goals.

How We Use Your Information

We use the collected information solely to provide and improve the App experience. This includes syncing your flashcard progress across devices, personalizing your learning path, and maintaining your streak and statistics. We do not sell, trade, or rent your personal information to third parties.

Data Storage & Security

Your data is stored on secure servers located in Germany (Hetzner Cloud). We use SSL/TLS encryption for all data transfers and JWT tokens for authentication. While no method of electronic storage is 100% secure, we strive to use commercially acceptable means to protect your information.

Third-Party Services

The App uses the following third-party services that may collect information: Apple Sign In (Apple Privacy Policy), Google Sign In (Google Privacy Policy). These services are used solely for authentication purposes.

Your Rights

You have the right to access, update, or delete your personal information at any time. You can delete your account from within the App settings, which will permanently remove all your data from our servers.

Data Deletion

You may request complete deletion of your data by deleting your account in the App, or by contacting us via email. All data will be permanently removed within 30 days of the request.

Children's Privacy

The App does not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us so we can take appropriate action.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy on this page and updating the "Last updated" date.

Contact Us

← Back to LangMaster