FluentAI is a language learning platform that turns streaming content into interactive lessons by overlaying dual subtitles on Netflix, YouTube, Prime Video, Disney+, and HBO Max. Users click any word for instant translation and pronunciation, save vocabulary, and reinforce it through flashcards, mini-games, and an AI tutor. The service syncs progress across a browser extension, web app, and mobile app, with a free tier and paid plans starting at Basic.
- Artificial Intelligence
- Applications
- Consumer Electronics
- Education Technology
- Media & Entertainment
- Software Only
Funding
Founders
Product
Problem
Traditional language learning methods often rely on static textbooks or isolated vocabulary drills, which fail to engage learners with authentic, real-world content. This disconnect makes it difficult for users to maintain motivation and retain what they learn, especially when they lack immersive opportunities to hear and see the language in context.
Solution
FluentAI provides a browser extension and companion web app that transforms streaming platforms like Netflix, YouTube, Prime Video, Disney+, and HBO Max into interactive language classrooms. The tool overlays dual subtitles in the user's native and target languages, allowing them to click any word for instant translation, pronunciation, and contextual analysis. Saved words and phrases are automatically organized into a personal vocabulary bank, which users can review through spaced-repetition flashcards, mini-games, and an AI tutor that generates sentence-mining exercises. Progress syncs across all devices via a single account, enabling learners to start on their laptop and continue on mobile without losing momentum.
Target Audience
Primary users are serious language learners—from beginners to advanced—who want to acquire vocabulary and comprehension skills through authentic streaming content, as well as self-directed learners who prefer immersive, media-based study over traditional courses.
Features
- Dual subtitle overlays with word-by-word highlighting on Netflix, YouTube, Prime Video, Disney+, and HBO Max, plus support for the open web
- Instant word lookup with translation, pronunciation, and AI-powered sentence breakdowns for deeper contextual understanding
- Vocabulary bookmarking with unlimited flashcards and spaced repetition scheduling, plus daily Anki export for external review
- AI-driven sentence mining that extracts high-value phrases from watched content, with usage caps varying by subscription tier
- Neural transcription for accurate subtitle generation on platforms lacking native captions, available on Pro and Backer tiers
- Cross-platform sync across browser extension, web app (EPUB/PDF readers), and mobile app, with a public leaderboard tracking vocabulary mastery scores