FAQ

Lexi Lumi is an AI-powered vocabulary and comprehension assistant that helps you learn from any text or video using instant explanations and spaced-repetition flashcards.

Lexi Lumi focuses on frictionless learning with built-in AI and browser integrations: - Easy — no setup or templates required - AI integration — instant explanations/translations and auto-filled card fields - Netflix/YouTube integration — click words for definitions, enable dual subtitles, and add flashcards in one click - Create flashcards on any webpage via the Chrome extension (highlight text → ‘Illuminate in Lexi Lumi’)

Chrome extension: it works anywhere you can select text—highlight any text on any site and choose 'Illuminate in Lexi Lumi' to open instant explanations, translations, and save words to your deck. On Netflix and YouTube, the extension augments captions: click words for definitions/translations, optionally enable dual subtitles, and add flashcards in one click.

Chrome extension: yes—it works on any website. Select any text and choose 'Illuminate in Lexi Lumi' to open instant explanations and save words. On Netflix and YouTube, the extension also augments captions: click words for definitions/translations, enable dual subtitles, and add flashcards in one click.

You can explore freely, but creating an account lets you save words, sync decks across devices, and track progress.

Yes. You can start for free and upgrade anytime for advanced features and higher usage limits.

Lexi Lumi supports major languages including English, Spanish, French, German, Japanese, Korean, Chinese, and more. We add new languages regularly.

Spaced repetition is a study method that schedules reviews at expanding intervals to maximize long‑term memory. Lexi Lumi uses it to help you remember words efficiently: - Automatically schedules reviews for saved words - Adapts intervals based on your performance (hard → sooner, easy → later) - Surfaces due cards first so short sessions stay effective - Syncs across devices so you can review anywhere

Open the Chrome Web Store, search ‘Lexi Lumi’, click Add to Chrome, then pin the extension from the toolbar for quick access.

Yes. On both sites you can click words on captions for definitions, optionally enable dual subtitles, and add flashcards in one click.

Google Chrome and most Chromium-based browsers (e.g., Microsoft Edge, Brave).

Explanations are AI-assisted and context-aware. You can change the output language and edit saved cards anytime for precision.

Dual subtitles show two languages at once. Use the extension’s subtitle menu to select a second track on supported videos.

Click a word in captions to see its explanation, then choose Add to Deck to save it in one click.

The caption overlay is lightweight and designed for smooth playback. You can adjust or disable features at any time.

Yes. After saving, you can edit explanations, add annotations, and tag cards (e.g., by language).

Netflix: A (previous), S (replay), D (next), L (illuminate). YouTube: A (previous), S (replay), D (next).

Refresh the page, ensure captions are enabled, sign in if needed, or reinstall the extension. If issues persist, contact support.

Yes—on supported captions we display transliteration (ruby/furigana) above base text when available.

Yes. Combine click-to-define with notes/annotations and add phonetics to cards you save for review.

Not yet. Direct import/export is on our roadmap.

We use industry-standard security practices with encryption in transit and at rest. You control your data and can delete it anytime.

You can cancel anytime. For billing questions or refunds, reach out to support and we’ll help promptly.