🇫🇮 Sanasto — Privacy Policy

Last updated: June 2026

Sanasto is a Finnish vocabulary learning tool consisting of a web app and a Chrome extension. This policy explains what data we collect and how we use it.

What we collect

• Username and password — when you create an account. Passwords are hashed and never stored in plain text.
• Your word list — the Finnish words and English meanings you save.

What we do NOT collect

• We do not collect your browsing history.
• We do not track which pages you visit or which words you look up without saving.
• We do not collect any personally identifiable information beyond your chosen username.
• We do not sell or share your data with third parties.

How your data is used

Your word list is stored in a database solely to sync it across your devices. It is only accessible when you are logged in with your account.

Third-party services

• Wiktionary API — used to fetch word definitions. No personal data is sent.
• Groq API — used to generate AI explanations of words. Only the looked-up word is sent, no personal data.
• Neon (PostgreSQL) — used to store user accounts and word lists securely.

Data deletion

You can delete your account and all associated data at any time by contacting us.

Contact

If you have any questions about this privacy policy, please contact us at finnish-flashcard.vercel.app.