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50
BU Score
Solid

Study Kanji N5 - N1: Janki

3.8 ✍️ Editor
✍️ BU Analytics Review

Study Kanji N5 - N1: Janki is an Android app from Language Skills Studio in the Education category, currently rated 3.8★ across 373 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 50Solid (established niche player). For a Education app, that means established niche player.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
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Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Established app (5y old)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
Early-stage install base (373 ratings)METRIC
+$400
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v2.8🔄 updated 7mo ago📂 Education💰 Free📺 Ad-supported💎 IAP $6.99 - $9.99 per item🚀 Launched 2020 (5y old)

📝 About this app

Learning Kanji is a must to conquer Japanese!
Kanji is one of the three important alphabets in Japanese, used a lot in newspapers and in everyday life. There are 2136 accepted kanji for official use in publishing. How many of them do you already know?

Kanji is considered the most challenging part when learning Japanese in general and JLPT in particular. There is a section of Japanese Kanji and on the JLPT test. To achieve N5 you have to know 80 - 100 Kanji, N4: 300 kanji, N3: 650 kanji, N2: 1000 words.

Don’t worry. Janki will help you learn Japanese Kanji with all 4 skills: listening - speaking - reading - writing with convenient features and smart learning route!

[KANJI STUDY ROUTE WITH JANKI]
👉 Learn: Flashcard + quiz
Ultimate Kanji flashcards
Easy learning 2094 kanji
Learn Japanese basic kanji and Most common kanji characters
Flashcard 214 radicals of Japanese defense
Synthesize kanji from N5 to N1
Consolidate your knowledge with multiple choice games

👉 Practice writing Kanji
Practice writing Kanji with strokes

👉 Practice: JLPT exam
Kanji practice for JLPT
Synthesis of 2094 Japanese kanji
Synthesize Kanji by level, easily review for JLPT


⭐MAIN FEATURE:

Janki is designed with many features to support memorization, including:
- Learn Kanji in detail: meanings, pronunciation, writing, examples of memorization exercises
- Learn Kanji with picture flashcard
- Learn Kanji with multiple choice questions
- Learn to write Kanji characters
- Learn to speak Kanji
- Kanji practice for JLPT: practice with exam questions
- Reminder learning
- Kanji divided by levels from N1 - N5 or challenging with no level division
- Night mode
- Save vocabulary by level
- Kanji dictionary: camera, voice, handwritten, typing, searching by radicals
- Progress to complete each level
- Attractive and interesting interface

Learning kanji is an indispensable step for you to conquer Japanese. Learn Kanji now with Janki!

READY TO SOLVE YOUR ISSUES AND FEEDBACK
We'd love to hear from you, that helps us make Janki better and better. Any feedback from you please send to our email: janki@eupgroup.net

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Study Kanji N5 - N1: Janki
Developer
Language Skills Studio
Bundle ID
com.eup.janki
App Store URL
Open in App Store
Category
Education
Content rating
Not found
Languages
Not found

Company

Website
eupgroup.net
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$263/mo
Top-grossing rank
Not found
All-time revenue
Not found
Pricing
$6.99 - $9.99 per item

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
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About page
Not found
📈Ratings growth373 ratings+92% lifetimeShow 3-year history estimate ▾May 2023Dec 2024May 2026
Tracked (1 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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