Osmomo.ai
Crush JLPT exams via anime + drama you love!
📚 Extension + Website: We work with a Chrome extension for video highlighting, and a user dashboard. Mobile app on the way!
🎯 Target JLPT Highlighting: You can pick your exact target tier (N5 to N1+). The app dynamically filters out the noise, visually highlights the JLPT vocabulary, and auto-saves words according to your learning pace without manual work.
🧠 Lexical Shortcut Engine: If you understand English or Chinese, the backend prioritises phonetic loanwords and shared roots to give your learning an instant headstart.
📊 Contextual Review Quizzes: No more manual savings. The AI automatically tracks what you watch and generates personalized vocabulary quizzes based entirely on your watch history.
We also just completely stripped down our broad extension backend permissions, meaning the app interacts with the DOM safely, securely, and entirely on the front end.
Like many of you, I wanted to clear language exams like the JLPT, but I hit a massive wall. I absolutely hated staring at dry textbooks, translating useless generic sentences, and spending hours grinding manual flashcard databases. I wanted to learn from real, native media—like anime and J-dramas—but constantly pausing videos to manually save vocabulary completely with existing solutions ruined the experience.
Traditional language apps give you cookie-cutter content, while general video extensions just throw a giant dictionary at you without any exam structure or prioritisation.
So, I built Osmomo to bridge the gap between binge-watching native content and achieving measurable exam success.
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Congratulations on launching!
Have you tested authorization controls around customer records and sales data?
I've seen CRM products expose data through IDOR vulnerabilities.
1 Comment
This is a strong idea, but I think the post is leading too much with the system and not enough with the learner pain.
The real hook is not “Chrome extension + lexical shortcut engine + contextual quizzes.”
It is something closer to:
“Prepare for JLPT while watching native Japanese content, without pausing every 30 seconds to manually save vocabulary.”
That speaks to the exact frustration better.
The product has a clear wedge: people who want exam progress but hate textbook-style studying. I’d probably make that the center of the positioning before explaining the engine underneath.
Drop your email and I’ll send over a tighter version. I’d map the cleaner positioning, first learner segment, and the launch message that makes Osmomo feel less like a vocabulary tool and more like a JLPT progress layer on top of real media.