Turn every word you look up into one you actually remember.
Ikhou is a browser extension and spaced-repetition app for learning languages from Netflix, YouTube, Prime Video, articles, and PDFs. Click any word in the subtitles, save it with the sentence that taught it, and review it until it sticks. Sentence mining without the manual card grind.
the German language; German as a subject or everyday language.
How it works
A simple loop: look up, queue, remember.
Ikhou is designed around the material you already use, not a canned curriculum.
Look up words anywhere
Use the extension while reading, watching, or listening. Capture the word in the place you found it.
They land in your queue automatically
Saved words sync into Ikhou with their sentence context, ready for review when you are.
Review until they stick
Use spaced repetition, targeted tutors, and calm repetition to turn lookups into memory.
Built for real immersion
Built for learners who want progress, not points.
Ikhou keeps the visual language calm and earnest while tightening the experience around real study habits.
No streaks. No XP. No fake urgency.
The product tells the truth about what is due. You review because it matters, not because a game mechanic is yelling at you.
Your content, not ours.
Ikhou is strongest when it follows the media, articles, subtitles, and notes you already care about.
Spaced repetition that adapts to you, not a schedule.
The algorithm adapts quietly in the background while the content and context stay yours.
Languages
Designed for the languages learners actually bring to Ikhou.
The experience keeps the same calm structure while adapting to each language's study path.
Strong for subtitle-heavy immersion, sentence capture, and character review.
A focused setup for Taiwanese media, reading, and daily vocabulary capture.
Built for anime, YouTube, manga, and long-term recall from native material.
A clean loop for subtitle capture, listening-heavy study, and vocabulary review.
Ideal for podcasts, series, conversations, and article-driven immersion.
Fits documentary, essay, and reading-heavy study with calm review afterwards.
Good for dense reading, strong note-taking, and disciplined spaced repetition.
A simple path for reading, listening, and building a steady review habit.
Useful for both Brazilian and European Portuguese immersion workflows.
Helpful for serious reading and vocabulary capture across challenging material.
A steady fit for article reading, listening practice, and contextual review.
FAQ
Questions learners ask before installing
- Does Ikhou work on Netflix, YouTube, and Prime Video?
- Yes. The browser extension adds clickable subtitles to YouTube, Netflix, Prime Video, Crunchyroll, and Vimeo, plus inline lookup on any website or PDF. Click a word mid-scene to look it up and save it without leaving the video.
- How is Ikhou different from Language Reactor or Migaku?
- Like those tools, Ikhou turns video subtitles into a learning surface. The difference is the review loop: every word you save keeps the sentence that taught it and flows straight into Ikhou's built-in spaced repetition, so capture and review live in one place instead of separate apps.
- Can I export my words to Anki?
- Ikhou has its own spaced-repetition review built in, so you do not need Anki to study what you capture. Words are saved with full sentence context and scheduled for review automatically.
- Which languages does Ikhou support?
- Ikhou works across major study languages including Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese, and Russian, adapting the review path to each language.
- Is Ikhou free?
- The browser extension is free to install and the core capture-and-review loop is free to use. You create a free Ikhou account to sync your saved words across the extension and the web app.
- Do I need an account to use the extension?
- You need a free Ikhou account to sync lookups to your review queue across devices. Connecting takes a moment on ikhou.com after you install the extension.
Start turning what you consume into what you know.
Get the extension, start capturing real material, and let Ikhou turn it into a calm review practice.