Study Quest vs Coban
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Study Quest
Embark on an epic quest to master languages by battling monsters and casting spells. Create a hero, use interactive flashcards, and compete with friends to boost motivation and retention. This app supports multiple languages and is suitable for all skill levels.
- Hero creation and customization
- Interactive flashcard books
- Gem-matching spell casting
- Monster battles in vibrant worlds
- Co-op and competitive multiplayer
- Smart algorithm for retention
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Create a hero and embark on an epic quest of language mastery! Supported languages: English · French · German · Italian · Japanese · Korean · Spanish ...with more coming soon! - Create your own, or discover official and community created books of interactive flashcards. - Match gems then answer questions to turn them into powerful spells. - Battle monsters across a host of beautiful, vibrant worlds. - Co-operate and compete with friends to boost your motivation. - Flashcards are scheduled by smart algorithms, proven to ensure maximum retention. Centre your studies around the app, or use it as an aid in tandem with other courses. Whatever your experience and skill level, Study Quest is an essential part of your language learning toolkit!
Coban
This app offers comprehensive support for learning Japanese, covering everything from basic characters to advanced grammar and vocabulary. It includes audio pronunciations, diverse learning modes like flashcards and exercises, and content tailored for all proficiency levels, from beginner to advanced.
- Hiragana, katakana, kanji, and vocabulary
- JLPT N5-N3 grammar coverage
- Audio pronunciation for all content
- Flashcards and practice exercises
- Shadowing and dictation exercises
- Japanese stories and cultural readings
- Advanced podcasts for N2/N1 learners
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Learn Japanese from hiragana to JLPT N1 with structured lessons for vocabulary, kanji, grammar, listening, reading, and review — all in one app. Coban is designed for learners who want to understand Japanese, not simply memorize it. Learn grammar and vocabulary in context, recognize patterns, and build the skills you need to understand and use Japanese naturally. — STUDY FROM N5 TO N1 Follow a structured learning path from beginner Japanese to advanced JLPT content. • 7,500+ vocabulary words • 2,100+ kanji • 490+ grammar points • 2,500+ example sentences • JLPT N5, N4, N3, N2, and N1 content — LEARN WITH AUDIO More than 12,000 audio recordings help you connect written Japanese with natural pronunciation. Listen to vocabulary and example sentences, practice shadowing, and strengthen your listening comprehension as you study. — REVIEW WHAT YOU LEARN Use quizzes and SRS review to reinforce vocabulary, kanji, and grammar and focus your study on what you need to remember. — STUDY JAPANESE OFFLINE Coban’s learning content is stored on your device, so you can continue studying even without an internet connection. — BUILT FOR REAL JAPANESE Coban goes beyond JLPT test preparation. Lessons are designed to help you see how Japanese works in context so you can apply what you learn to reading, listening, conversation, and everyday communication. Whether you are just starting Japanese or working toward JLPT N1, Coban gives you a complete Japanese study library you can keep using as your skills grow.
Screenshots
Verdict
The clearest difference is rating: Coban at 4.8 against Study Quest's 4.1. Coban also leads on update cadence (weekly vs monthly) and ratings volume (620 vs 18). Study Quest's advantage is ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price, 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
Both are free to download. Study Quest sells 3 one-off in-app purchases and Coban sells 5 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
Coban holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Coban has 620 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 65% of Study Quest's written reviews are positive against 81% of Coban's.
Study Quest ships an update monthly, Coban weekly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Study Quest | Coban |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (18 ratings) | 4.8 (620 ratings) — better |
| Positive reviews | 64.7% of reviews | 80.7% of reviews — better |
| Number of ratings | 18 | 620 — better |
| Update frequency | Monthly | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 67 MB | 661 MB |
| Age rating | 4+ | 4+ |
| Developer | Futuretro Studios | Akira NOGUCHI |
Customer experience
Study Quest
Coban
Bugs and requests
Study Quest
Not enough reviews yet to summarise bugs or requests.
Coban
Reported bugs
3 issues- Drag and drop feature not working
- Crashes after completing quizzes
- Vocabulary lessons causing the app to freeze
Requested features
4 requests- Expand to higher JLPT levels (N3, N2, N1)
- Add a placement test to determine user's level
- Improve vocabulary practice and review options
- Offer an ad-free version for a one-time purchase
In-app purchases
Study Quest
- Pile of Oins$0.99
- Bag of Oins$1.99
- Chest of Oins$2.99
Coban
- Premium User$6.991 Month
- Premium User$39.906 Months
- Premium User$59.991 Year
- Lifetime Upgrade$59.99
- Lifetime Access$99.99









