KoreanNumber vs Bootstrap Korean Grammar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KoreanNumber
Learn Korean numbers through interactive game modes. Master both Sino-Korean and Native Korean number systems. Practice converting numbers to Korean and vice versa.
- Sino Korean Number learning
- Native Korean Number learning
- Number to Korean conversion
- Korean to Number conversion
- Multiple game modes
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Let's learn Korean number in this game. All modes are available. Sino Korean Number Native Korean Number 1 > Korean Number Korean Number > 1
Bootstrap Korean Grammar
Master Korean grammar with a step-by-step approach. This app offers 185 grammar topics and over 3200 audio examples to build your communication skills. Interactive exercises and a personal study list enhance learning.
- 185 grammar topics
- 3200+ audio examples
- Step-by-step learning
- Interactive exercises
- Personal study list
- Companion book integration
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Finally understand Korean grammar - one small step at a time. • 185 topics, from your first sentence to honorifics and reported speech • 3,200+ examples, each with native-speaker audio • Exercises and spaced repetition for every topic • A "Why?" explanation when you make a mistake Packed with 185 Korean grammar topics and over 3,200 annotated native-speaker audio examples, *Bootstrap Korean Grammar* is a proven grammar-based approach that gets you communicating in Korean precisely and with confidence. FREE TO TRY: The first 10 topics free. Unlock all 185 with one purchase. A lifetime purchase - NO subscription. * 'Bootstrap Korean Grammar' provides the solid grounding in grammar basics that is the key to mastering Korean as a second language. * Grammatical rules and concepts are clearly explained in order. Each topic builds on the last - step-by-step. * Hundreds of new words are introduced with clear contextual meanings alongside the grammar to help learners quickly build their Korean speaking and comprehension prowess. STEP-BY-STEP TOPICS: Starting from the beginning, the idea is progress in small self-contained steps (called 'topics'). Each topic builds on the last, by incrementally adding new grammatical patterns, new vocabulary and lots and lots of useful examples - from the topic and subject markers 은/는 and 이/가, through tenses and particles, to causatives, honorifics and the formal 습니다 style. 3,200 EXAMPLE PHRASES: Each topic includes a thorough explanation of the grammar and then lots of examples that illustrate the grammar. Each example includes an English translation, as well as notes highlighting how each example illustrates that topic's grammar, as well as the meanings of new Korean words. INTERACTIVE EXERCISES: Once you have understood a grammar topic, you can immerse yourself in interactive drills designed for effective learning. Practice Korean grammar with engaging exercises for rapid improvement. Make a mistake with the topic's grammar and a short "Why?" explanation shows you what the right answer is - and why. STUDY LIST: The app now includes an integrated personal study list feature that streamlines your learning process -- improve your focus and achieve better results in your studies. THE COMPANION BOOK: The companion book is available called "Bootstrap Korean Grammar". The book includes all 185 grammar topics and over 3,200 example phrases from this app. -- Just search for "Bootstrap Korean Grammar" on Amazon. -- The book and mobile app are easy to coordinate using QR codes. Just scan the QR code at the beginning of any chapter in the book with the app and it will take you straight to the topic where you will find all the examples with the high-quality audio matching the chapter in the book. -- So if you prefer to have the grammar set out in book form but would also like to be able to listen to the example sentences, then the book/app combination is perfect for you.
Screenshots
Verdict
The clearest difference is rating: KoreanNumber at 4.3 against Bootstrap Korean Grammar's 3.5. KoreanNumber also leads on in-app purchases (none vs 1) and review sentiment (67% vs 33%). Bootstrap Korean Grammar's advantage is ads (none vs shown) and update cadence (every 9 days vs every 3 months). On price, ratings volume, 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
Both are free to download. Bootstrap Korean Grammar sells 1 one-off in-app purchase. KoreanNumber asks for nothing beyond the download.
KoreanNumber holds the better App Store score, 4.3 against 3.5. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 67% of KoreanNumber's written reviews are positive against 33% of Bootstrap Korean Grammar's.
KoreanNumber ships an update every 3 months, Bootstrap Korean Grammar every 9 days. Both last shipped on October 24, 2026.
| Parameter | KoreanNumber | Bootstrap Korean Grammar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | 3.5 (4 ratings) |
| Positive reviews | 66.7% of reviews — better | 33.3% of reviews |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 65 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | kazumasa fujihara | Declan Software Ltd |
Customer experience
KoreanNumber
Bootstrap Korean Grammar
In-app purchases
KoreanNumber
No in-app purchases
Bootstrap Korean Grammar
- Unlock All Korean Topics$34.99
Questions
Is KoreanNumber free?
Is Bootstrap Korean Grammar free?
Which has better reviews, KoreanNumber or Bootstrap Korean Grammar?
Do KoreanNumber or Bootstrap Korean Grammar have ads?
Which is updated more often, KoreanNumber or Bootstrap Korean Grammar?
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