Lingvist
Lingvist is an AI-powered language learning platform using spaced repetition to teach practical vocabulary in 10 minutes a day.
Free·from $9.99/mo
About Relingo
Relingo is a browser extension and mobile app that helps you build vocabulary naturally while you browse the web, watch YouTube, or read news. Instead of flashcards or drills, it highlights unfamiliar words on any page and shows translations, usage, and memory-tracking — all without interrupting your flow.
What problem does it solve?
Traditional language learning requires dedicated study time. Relingo solves this by embedding learning into everyday browsing — on BBC, Medium, Twitter, Facebook, YouTube, and more. Its AI-powered spaced repetition system identifies words you're about to forget and surfaces them again, reinforcing memory while you read what interests you.
Who is it for (and who is it not for)?
Relingo is best for intermediate language learners, polyglots managing multiple languages, or anyone who wants to expand vocabulary passively through real-world content. It supports English, Japanese, Chinese, Korean, Spanish, French, German, Portuguese, Russian, Arabic, and more. It is not a full language course — it won't teach grammar or conversation from scratch. Beginners may still need a structured course alongside it.
Real use cases
- Read BBC news with automatic word highlights and instant translation
- Watch YouTube with dual subtitles (bilingual) and study vocabulary in context
- Listen to podcasts with bilingual subtitles and word lookup
- Read PDF files with bilingual translation and highlight unknown terms
- Use RSS subscriptions to turn feeds into daily learning material
Key features
- AI-Powered Word Highlighting — automatically detects and highlights unfamiliar words based on your level and saved vocabulary
- Contextual Translation — hover or click any word to see its meaning, usage in the sentence, and real pronunciation examples
- Spaced Repetition System — reviews saved words on a forgetting curve to strengthen long-term retention
- YouTube & Podcast Dual Subtitles — add bilingual subtitles while watching or listening, and study vocabulary from media
- Immersive Translate — multiple translation modes (word, sentence, paragraph, full-page) for seamless reading
- Progress Tracking & Reports — dashboard shows words learned, reading time, retention rate, and daily email flushing
- Multi-Language & Dictionary Support — learn English, Japanese, Chinese, Korean, Spanish, French, German, Portuguese, Russian, Arabic and more; access multiple dictionaries for comprehensive meanings
Relingo Pricing
Relingo pricing: Free · from $5/mo. Billing model: Freemium.
Free
Start with 10,000 monthly free credits (≈ 320K chars via OpenAI/Gemini/DeepSeek). Includes browser word highlights, YouTube word highlights, YouTube dual subtitles, selection & sentence translation, immersive translation, and 50 saved words.
Premium
$5.00 / month (annual billing available). Unlocks advanced features: unlimited saved words, unlimited saved examples, English-only dictionary, professional vocabularies, advanced word explanations, AI grammar analysis, word training, daily email flash memory, study reports, sync across devices, word import/export, export to Anki, custom personal vocabularies, multiple activated word books, and meaning editing.
Credits (add-on)
Buy credits to access premium translation engines (DeepL, GPT, Claude, etc.). $1 = 10,000 credits. Valid for 1 year after purchase. Dictionary lookups remain free.
Free trial: Start with the Free plan — no credit card required. Upgrade or purchase credits anytime.
Frequently asked questions
Is Relingo free?
Yes, Relingo offers a free plan with 10,000 monthly credits, basic word highlights, and 50 saved words. Premium starts at $5/mo.
How does Relingo work?
Install the browser extension or mobile app. As you browse websites like BBC, YouTube, or Medium, Relingo automatically highlights unfamiliar words and shows translations, usage, and spaced repetition reviews.
What languages does Relingo support?
Relingo supports English, Japanese, Chinese (Simplified & Traditional), Korean, Spanish, French, German, Portuguese, Russian, Arabic, and more.
Is Relingo better than traditional flashcards?
Relingo embeds learning into your daily browsing instead of requiring separate study time. It uses spaced repetition and contextual exposure, which many find more natural and sustainable than flashcards alone.
Who is Relingo best for?
It's ideal for intermediate language learners, polyglots, and anyone wanting to expand vocabulary passively through real-world content. Beginners may need a separate grammar course.
What are the main limitations of Relingo?
Relingo focuses on vocabulary acquisition, not grammar or conversation. The free plan has a 50-word limit and 10,000 monthly credits. Premium unlocks advanced features like AI grammar analysis and unlimited word storage.
