Privacy Policy

Japanese Playground flashcards · flashcards.japaneseplayground.com · Last updated: November 9, 2026

Japanese Playground helps you learn Japanese with audio flashcards. You can use it without an account. This page explains what we keep about you and why. In short: only what's needed to save your progress, and we never sell it.

Without an account

Your progress (which cards you know and when to review them) is saved only in your own browser, on your device. We don't receive it.

With an account (optional)

If you sign in, we keep:

• Your email address, so you can sign in and receive account emails (confirm your signup, reset your password).
• Your password, stored only in scrambled (hashed) form. Nobody can read it, not even us. If you use Google, we never see a password.
• Your study progress, so it's the same on your phone and your computer.

If you choose Continue with Google, Google shares only your name, email address and profile picture with us. We only use the email address.

What we don't do

• No ads, and no tracking or analytics.
• We never sell or share your information, and we don't send newsletters.

Services we use

• Supabase: stores accounts and progress.
• Resend: sends the account emails.
• Google: only if you choose to sign in with Google.
• Cloudflare: hosts the website.

These services may store data in other countries (for example in the United States).

Deleting your account

Email contact@japaneseplayground.com from the address you signed up with, and we'll delete your account and your progress. Progress saved in your browser stays there until you clear your browser data.

Contact

Questions about this page: contact@japaneseplayground.com