KotobaHoshi
Learn Japanese vocabulary through illustrations
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Explore Japanese vocabulary with illustrations, audio and example sentences. Browse JLPT N5–N1 levels, save words and build recKotobaHoshi (ことば星) is a free, visual-first Japanese vocabulary learning app. Explore 7,800+ JLPT N5–N1 words, each with a unique watercolor-style illustration, pronunciation audio, and two example sentences. Learn with Japanese, English, and Chinese explanations, furigana, and FSRS-powered spaced repetition.
PH · launched Nov 11, 2026 · 1 upvote (top 65%) · 0 views
Niche: language learning apps · 511 launches, 50 in the last 7 days ▼ -6% · Explore this niche →
Category and tags
- Education
- B2C
- Not AI
- Commercial product
- Web App
- Education
- Languages
Visit website ↗ Source listing ↗
More like this: all 511 launches in language learning apps →
Could you build this?
Partial The app itself (search, audio playback, saved lists, spaced repetition) is easy to vibe-code. Producing 7,800 consistent illustrations and quality-checked example sentences is a large content effort rather than a coding problem.
What it would actually take: Build a simple app over a JLPT vocabulary dataset with TTS audio and example sentences. The main work is generating and curating roughly 7,800 illustrations in a consistent style, probably with image models and human review of meaning and cultural accuracy. Native-speaker reviewers and an art pipeline are needed for quality.
Competitors
Other products that read as similar to this one : 244 launches clear the similarity bar, closest 8 shown.
Attention rank: #94 of 245 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 365 days after the earliest competitor.
- Kotojutsu · ph · 2026-10-22 · 1 upvotes · similarity 0.67
- KanaCraft Japanese · ph · 2026-10-16 · 1 upvotes · similarity 0.64
- Visual Japanese · ph · 2026-10-07 · 1 upvotes · similarity 0.62
- Lock&Learn Japanese · ph · 2026-10-21 · 2 upvotes · similarity 0.59
- Japanese Skills · 言の葉 · ph · 2026-10-31 · 2 upvotes · similarity 0.58
- Diccionario Japonés · ph · 2026-10-06 · 1 upvotes · similarity 0.56
- Kaname: Japanese Grammar · ph · 2026-10-09 · 2 upvotes · similarity 0.56
- Nihongo no Practise · ph · 2026-10-21 · 1 upvotes · similarity 0.54
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