Sentence Samurai vs Bunchuu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentence Samurai
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Master Japanese through immersive sentence practice. Generate custom sentences at your JLPT level (N5-N1), with furigana readings, AI-powered translations, and integrated dictionary lookups. Perfect for building real-world comprehension skills. FEATURES: - Generate practice sentences tailored to your JLPT level (N5 through N1) - Toggle furigana readings on/off to test your kanji knowledge - AI-powered English translations and grammar breakdowns - Built-in offline Japanese dictionary with tap-to-lookup - Bookmark sentences for later review - Speech-to-text for pronunciation practice - Manga reader with OCR-powered Japanese text extraction - Cloud backup to sync your progress across devices - Sign in with Apple or email Whether you're just starting with hiragana or preparing for the JLPT N1, Sentence Samurai adapts to your level and helps you build real reading comprehension through practice.
Bunchuu
This app enhances language learning by providing real-world context for vocabulary and kanji. It offers customizable study sessions, offline access, and seamless synchronization with an existing learning platform. Enjoy a visually appealing and private study experience.
- Vocabulary in context with furigana
- Customizable study and review sessions
- Offline access and progress syncing
- Visual progress tracking
- Private study with no tracking
- Dark mode support
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Bunchuu is a beautiful, fast, native companion app for WaniKani. Do your lessons and reviews anywhere — then go further, and meet every kanji where it lives: in real sentences. VOCABULARY IN CONTEXT Real context sentences for every vocabulary item. Furigana readings and plain-English grammar notes, one tap away. Translations stay veiled until you ask, so you can test yourself first. YOUR STUDIES, YOUR PACE Hand-pick exactly which radicals, kanji, and vocabulary to learn next. Review in batches, choose the ordering, and ask meaning and reading back to back — or far apart. Typo tolerance, your own synonyms, an automatic kana keyboard, and a leech threshold you control. WANIKANI'S SRS, SYNCED Works fully offline — lessons, reviews, and every mnemonic are cached on your device, and progress syncs when you're back online. Your progress lives in your WaniKani account, so you can switch between Bunchuu and the website at any time. Accuracy, streaks, and review history for every item. WATCH YOUR PROGRESS RISE Every level and every SRS stage, at a glance. Get notified the moment reviews are ready. A DELIGHTFUL PLACE TO STUDY A watercolor world, from the radicals to the snack breaks. Beautiful enough to make reviews feel like a treat. Full dark mode. PRIVATE BY DESIGN No Bunchuu account, no analytics, no tracking. Your study data syncs directly between your device and your WaniKani account. Bunchuu requires an active WaniKani account (wanikani.com). WaniKani's free trial covers its first three levels, so you can try both together. Bunchuu is an unofficial third-party app and is not affiliated with WaniKani or Tofugu, LLC.
Screenshots
Verdict
Sentence Samurai and Bunchuu are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Sentence Samurai | Bunchuu |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 75 MB | 54 MB |
| Age rating | 17+ | 4+ |
| Developer | Frederick Ige | Four Skills Labs, LLC |
In-app purchases
Sentence Samurai
No in-app purchases
Bunchuu
No in-app purchases









