Privacy Policy

Last updated: 5 October 2026

LingoPing is a browser extension for learning German vocabulary. This page explains what information it handles, why, and what you can do about it.

What LingoPing stores

• Your account: when you sign in with Google, we receive your email address, your name and your profile picture address from Google. We never see your Google password.
• Your learning data: the cards you learn, your decks, your review history, the words you marked as known, and your settings (for example your translation language and how many new words you want per day).

This is stored on your device and, once you are signed in, in your account on our database (hosted by Supabase), so that it follows you to your other devices. Only you can read or change your own data.

What happens when you add a word

When you add a word (by typing it, importing a list, or selecting it on a web page and choosing "Add to LingoPing"), our server sends that word, and for a word selected on a page the sentence around it, to an AI service to write the card:

• the card text is written by Google Gemini, reached through Cloudflare's AI Gateway with zero data retention;
• the picture is drawn by Cloudflare Workers AI from a short English description of the word.

Your name, email address and browsing history are never sent to these services. The finished card content (the word, its meaning, example sentence and picture) is kept in a shared library so the next learner who adds the same word gets it instantly. The sentence from the web page is not kept in that library.

LingoPing reads a web page only at the moment you choose "Add to LingoPing" from the right-click menu, and only the selected word and the sentence around it.

Optional: your own Gemini key

If you add your own Google Gemini key in Settings for a more natural voice, the text to be read aloud is sent from your browser straight to Google under your own key. The key is stored on your device only.

What LingoPing does not do

• No advertising and no tracking across websites.
• No selling or sharing of your data with anyone for their own purposes.
• No collection of your browsing history.

Who processes the data

• Supabase: database, sign-in and picture storage.
• Google: sign-in, and Gemini for card text.
• Cloudflare: the AI Gateway and picture generation.

Keeping and deleting your data

Your data is kept for as long as you have an account. To delete your account and everything stored with it, write to [email protected] from the email address of your account; we delete it within 30 days. Card content in the shared library (words and their meanings) is not personal and stays.

Children

LingoPing is not directed at children under 13.

Changes

If this policy changes, the new version is published on this page with a new date.

Contact

Mohammad Azadeh, [email protected]