Koboshi
Look up a word once, see it in every language you know
This is 1 of 193 launches in AI translation and dubbing tools — see how it stacks up on momentum and crowding →
114 other launches read as similar to this one →
Details
- External ID
- 1266175
- Source
- PH
- Company
- —
- Product
- Koboshi
- Website domain
- producthunt.com
- Launched
- Oct. 1, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.3382226056945643
- Tags
- Education, Languages
- Fetched at
- Oct. 2, 2026, 1:01 a.m.
- Updated at
- Oct. 2, 2026, 1:01 a.m.
Description
Koboshi is the language knowledge base for multilinguals and polyglots. Save the words you meet anywhere (ChatGPT, Duolingo, a screenshot) and spaced repetition brings them back until they stick, across every language you speak. Each word shows its meaning in all your languages side by side, since the language that makes it click changes from word to word. Save straight from ChatGPT or Claude with the Koboshi connector. There will always be a free plan.
Enrichment
- Theme
- AI translation and dubbing tools
- Vertical
- Education
- Function
- Search & retrieval
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- multilingual dictionary for language learners
- Manually corrected
- False
Could you build this?
Yes It is a multilingual flashcard / spaced repetition app (using standard algorithms like SM-2 or FSRS) backed by a translation API (or LLM) to look up words in multiple languages simultaneously.
Competitors
Other products that read as similar to this one — 114 launches clear the similarity bar, closest 8 shown.
Attention rank: #50 of 115 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 328 days after the earliest competitor.
- Honku · ph · 2026-09-11 · 1 upvotes · similarity 0.47
- YuzuLingo · ph · 2026-10-01 · 1 upvotes · similarity 0.44
- Kotatabi · ph · 2026-09-14 · 1 upvotes · similarity 0.43
- Singdu · ph · 2026-09-07 · 7 upvotes · similarity 0.42
- Learn Japanese contextually while browsing · hn · 2025-12-17 · 92 upvotes · similarity 0.41
- Kizuu · ph · 2026-09-30 · 2 upvotes · similarity 0.41
- KomaLume · ph · 2026-09-09 · 1 upvotes · similarity 0.41
- YABAI · ph · 2026-09-20 · 91 upvotes · similarity 0.40
Other launches for this product
- No other launches for this product.