Privacy Policy
Last updated: 26 May 2026
Pinglingo is a language-learning suite: a website, an iOS app, and a Chrome extension that adds clickable dual subtitles to YouTube. This policy explains what the suite collects and why. We keep it minimal and we don't sell your data.
What we collect
- Email address — only if you sign in. We use it for passwordless magic-link login and to tie your saved words to your account. No password is stored.
- Saved words — when you save a word, we store the word, its translation/part-of-speech, the sentence it appeared in, and the source video URL, so you can review them across the web, app, and extension.
- Subtitle text you view — to show translations and per-word meanings, the extension sends the current subtitle line to our server, which translates and analyses it and caches the result so it's instant next time.
- A random device id — if you use the extension without signing in, we generate a random identifier (not linked to you) purely to rate-limit free usage.
Service providers
To provide translations, definitions, pronunciation, and login emails, subtitle/word text or your email may be processed by: Google Cloud (Translate & Text-to-Speech), OpenAI / DeepSeek (word definitions), and Resend (sending login emails). They process this data only to perform their service.
What we don't do
No ads. No selling or renting your data. No third-party trackers. The extension only runs on YouTube and only talks to our own server (pinglingo.com) and YouTube's caption data.
Keeping & deleting your data
We keep your account and saved words until you ask us to delete them. To delete your account and associated data, email us and we'll remove it. You can clear the extension's local settings any time by removing it from Chrome.
Contact
Questions or deletion requests: privacy@pinglingo.com.