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68
BU Score
Solid

Learn Japanese - Kana & JLPT

4.2 ✍️ Editor
✍️ BU Analytics Review

Learn Japanese - Kana & JLPT is an Android app from sagetsang in the Education category, currently rated 4.2★ across 14,394 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 68Solid (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.

creator

📊 Performance Tracking LIVE

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Rating
Reviews
Forecast Revenue / mo
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💰 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 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (14,394 ratings)METRIC
+$5,500
Mature app (12y old)METRIC
+$1,500
Good rating (4.2★)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
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 →
🔖 v3.0.0🔄 updated 4w ago📂 Education💰 Free🚀 Launched 2013 (12y old)

📝 About this app

Learn Japanese is a practical, user-friendly study app designed for beginners and intermediate learners striving for steady, daily progress in Japanese. Whether you’re starting from scratch, preparing for the JLPT, or looking to improve real-life communication, this all-in-one tool has everything you need to build and strengthen your Japanese skills.
Build a solid foundation with guided kana practice, expand your vocabulary with JLPT-aligned word lists, and master useful everyday expressions—all in one convenient place. No more switching between multiple apps; streamline your study routine and make consistent progress with minimal effort.

Key Features

- Guided hiragana and katakana writing practice with standard stroke order and pronunciation audio
- JLPT vocabulary organized by level (N5 to N1), paired with real-life example sentences for better retention
- Clear kanji stroke order animations to simplify memorization and ensure correct writing
- Focused practice for numbers, dates, and time—essential for daily conversations and practical use
- Intelligent wrong-answer review to target weak points and reinforce learning efficiently
- Offline-friendly design: download resources once and study anytime, anywhere—no internet required

Our app uses trusted open-source resources to ensure accuracy and reliability in all content:

- JLPT vocabulary: http://www.tanos.co.uk/jlpt/

- Kanji stroke data: http://kanjivg.tagaini.net/

- Example sentences: http://tatoeba.org/

With a clean, intuitive interface and no annoying ads, Learn Japanese makes self-study easy and enjoyable. Perfect for JLPT test-takers, travel enthusiasts, anime lovers, and anyone looking to master Japanese at their own pace.

Download now and start your Japanese learning journey—one day at a time!

Keywords: Learn Japanese, Japanese for beginners, JLPT, JLPT N5-N1, Hiragana, Katakana, Kanji, Japanese vocabulary, Japanese stroke order, Offline Japanese, Japanese practice

Profile & Insights

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

Identification

App name
Learn Japanese - Kana & JLPT
Developer
sagetsang
Bundle ID
com.sage.ljp
App Store URL
Open in App Store
Category
Education
Content rating
Not found
Languages
Not found

Company

Website
sagetsang.github.io
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
$1.2K/mo
Top-grossing rank
Not found
All-time revenue
Not found
Pricing
Not found

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 growth14,394 ratings+29% 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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