Comparison

Rokoba vs Sentence Samurai

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Rokoba

Learn Japanese vocabulary daily with 6 new words, meanings, and pronunciations delivered via notifications. Master over 10,000 words without needing to open the app, making language learning seamless and fun for all levels.

Highlights
  • Daily word notifications
  • Learn without opening app
  • Large vocabulary library
  • Pronunciation guides
  • User-friendly design
Features
Read full description

Master Japanese Vocabulary, One Word at a Time! Learning Japanese has never been easier! Our app helps you learn 6 new Japanese words each day, complete with meanings and pronunciations delivered directly to your device. No need to open the app — you’ll receive notifications that allow you to learn effortlessly, anywhere, anytime. Perfect for beginners and advanced learners alike, this app makes language learning seamless and fun. Features: Daily Word Notifications: Receive six new Japanese words every day, including their meanings and audio pronunciations, directly in your notifications. Learn Without Opening the App: View word meanings and pronunciations in the notification itself — no need to open the app! Large Vocabulary Library: Access over 10,000 words, from basic to advanced, all designed to improve your fluency. Pronunciation Guides: Hear the correct pronunciation for each word, helping you master Japanese pronunciation. User-Friendly Design: A clean, intuitive interface that makes learning enjoyable and easy. Whether you're preparing for the JLPT or just interested in learning Japanese, this app provides the perfect way to expand your vocabulary, one word at a time!

About

Sentence Samurai

Practice Japanese sentences tailored to your JLPT level, from N5 to N1. Features include furigana toggling, AI translations, and an offline dictionary. Improve reading comprehension and pronunciation with speech-to-text and manga OCR.

Highlights
  • Customizable JLPT level sentences
  • Furigana toggle
  • AI-powered translations
  • Offline Japanese dictionary
  • Speech-to-text pronunciation practice
  • Manga reader with OCR
Features
Read full description

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.

Screenshots

Rokoba4 screens
Sentence Samurai3 screens

Verdict

The call

The clearest difference is price: Sentence Samurai at Free against Rokoba's $1.99. Rokoba's advantage is iOS requirement (13.4 vs 16.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Sentence Samurai is free to download; Rokoba costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
Rokoba versus Sentence Samurai: the parameters behind the verdict, then further details
ParameterRokobaSentence Samurai
Price$1.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 6 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.4 — better16.0
Further details — not scored
Size20 MB75 MB
Age rating4+17+
DeveloperNishan BaralFrederick Ige

In-app purchases

None

Rokoba

No in-app purchases

None

Sentence Samurai

No in-app purchases

Questions

Is Rokoba free?
Rokoba costs $1.99, with no in-app purchases.
Is Sentence Samurai free?
Sentence Samurai is free to download, with no in-app purchases.
Do Rokoba or Sentence Samurai have ads?
Neither Rokoba nor Sentence Samurai shows ads.

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