Privacy Policy

Last updated: June 10, 2026

Vocabular ("we", "our", "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application and Chrome extension.

Information We Collect

We collect the following information when you use Vocabular:

• Account information: Your email address and encrypted password when you create an account.
• Vocabulary data: Words, translations, and context you save while using the app or extension.
• Usage data: Review progress, learning streaks, and study statistics stored locally on your device.

How We Use Your Information

We use your information solely to provide and improve the Vocabular service:

• To authenticate your account and enable cloud sync across devices.
• To store and retrieve your saved vocabulary.
• To track your learning progress.

Data Storage and Security

Your data is stored securely using Supabase, a cloud database service with enterprise-grade security. All data is encrypted in transit using HTTPS/TLS. Your password is hashed and never stored in plain text.

Third-Party Services

We use the following third-party services:

• Supabase: For authentication and database storage. Supabase Privacy Policy
• PostHog (EU Cloud): For anonymous, aggregate usage statistics, processed in the European Union. PostHog Privacy Policy

We do not sell, share, or provide your personal data to any other third parties.

Data Retention

Your data is retained as long as your account is active. You can request deletion of your account and all associated data at any time by contacting us.

Your Rights

You have the right to:

• Access the personal data we hold about you.
• Request correction of inaccurate data.
• Request deletion of your data.
• Export your vocabulary data.

Cookies and Analytics

Vocabular collects anonymous usage statistics across the website, mobile app, and browser extension to understand which features are used and to improve the product.

• Anonymous only: Usage events are never linked to your account, name, or email address. We do not build user profiles.
• What we collect: Feature-usage counts (for example, "a word was saved" or "a flashcard was reviewed"), language pair codes, app version, platform, and visits to the pages of our own website.
• What we never collect: The words you translate or save, your translations, the web pages you read or visit, your email address, or any other personal information.
• No cookies: Our website analytics run without cookies — nothing is stored on your device — and the "Do Not Track" browser setting is respected.
• No advertising: We use no advertising trackers and never sell or share usage data. Analytics data is processed by PostHog in the European Union.

Children's Privacy

Vocabular is not directed at children under 13. We do not knowingly collect information from children under 13. If you believe we have collected data from a child under 13, please contact us immediately.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last updated" date at the top of this page.

Contact Us

If you have any questions about this Privacy Policy or wish to exercise your rights, please contact us at:
[email protected]