紀伊國屋書店Kinoppy｜電子書籍/小説/コミック
60
Quality Score
Solid
紀伊國屋書店Kinoppy｜電子書籍/小説/コミック
Medium confidence
✍️ bumetric analysis
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紀伊國屋書店Kinoppy｜電子書籍/小説/コミック is an Android app from Kinokuniya Company Ltd in the Books & Reference category, currently rated 4.1★ across 6,309 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 60: Solid (established niche player). For a Books & Reference app, that means established niche player. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Monthly revenue · now vs forecast
● Right now
$838
per month
→
12-mo forecast
$733 – $2641
per month
→
24-mo forecast
$679 – $6109
per month
INDIE tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$75K
↳ What it cost to build · not monthly revenue
Likely range $55K – $100K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Slow ROI — current MRR is well below build cost
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱 MVP baseline (design + 1-store ship) | +$28K |
| 📱 5 unique screens × $4.5K | +$22K |
| ⚙ Books & Reference complexity ×0.95 | $-2525 |
| 🌐 Cross-platform reach (iOS + Android) | +$26K |
Total estimate
$75K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$10K
↳ What it would sell for · not monthly revenue
Marketplace range $10K – $15K · 15× MRR multiple
💸
~0.1× build cost (under-water)
Synthetic estimate. Multiple band derived from ad-supported + age, rating quality, category demand, and user-base maturity. Calibrated against 2024-2026 indie-app-marketplace closed-deal medians. Full math + comparable deal list on /methodology.
How the multiple was built
| 📺 Ad-supported base | 15× MRR |
| 🏷 Books & Reference category multiple | -2% |
Final multiple
15× MRR
👥 Estimated audience size
690K
Lifetime downloads (US-equivalent)
Monthly active
69K
Daily active
13K
Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.
How we sized it
| 📲 Books & Reference engagement | ~110 installs / rating |
| 🔁 Books & Reference D30 retention | 10% |
| 📍 DAU / MAU stickiness | 0.20 |
DAU / MAU
20% sticky
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$838/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
6 months
$713 – $1.7K
12 months
$733 – $2.6K
24 months
$679 – $6.1K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Early-stage solo · 43/100INDIE TIERexpected for tierRevenue Strength
2.9
Product Quality
7.4
Market Position
0.0
Growth Velocity
5.0
Defensibility
4.5
Operational Safety
10.0
Founder Strength
3.9
Monetization Maturity
1.0
- 💰 Revenue: Marginal — $335 - $2095/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.13★ across 6,309 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 For acquirers: Estimated asking range 18-32× monthly = $15K-$26K.
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
Range:
💰 Forecast Revenue / mo
MODELRevenue 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:
| Low install base (6,309 ratings)METRIC | +$1,500 | |
| Mature app (10y old)METRIC | +$1,500 | |
| Good rating (4.1★)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- 紀伊國屋書店Kinoppy｜電子書籍/小説/コミック
- Developer
- Kinokuniya Company Ltd
- Bundle ID
- jp.co.infocity.ebook
- App Store URL
- Open in App Store
- Category
- Books & Reference
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.kinokuniya.co.jp
- 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
- $838/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
Contacts & Socials data not yet collected for this app.
📈Ratings growth6,309 ratings+9% lifetimeShow 3-year history estimate ▾
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.
📝 About this app
Kinokuniya Bookstore Kinoppy is an e-book service operated by Kinokuniya Bookstore, one of the largest bookstore chains in Japan.
■ Features of the app
◇ ◆ Read a book ◆ ◇
・ Viewer that can be operated smoothly and without stress
・ Offline reading
-Marker function that allows you to add lines and memos not only to text books but also to comics and photo books
・ Page list function that allows you to easily find the page you want to read
・ Various page turning modes that can be selected according to the usage scene… View full description on the official store →
■ Features of the app
◇ ◆ Read a book ◆ ◇
・ Viewer that can be operated smoothly and without stress
・ Offline reading
-Marker function that allows you to add lines and memos not only to text books but also to comics and photo books
・ Page list function that allows you to easily find the page you want to read
・ Various page turning modes that can be selected according to the usage scene… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v3.15.3.79a9ed0🔄 updated 0d ago📂 Books & Reference💰 Free
🧪
Tech & Domain Intel — kinokuniya.co.jp
- Tech stack
- SendGrid · AWS SES · Apple Pay / Sign in with Apple
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for 紀伊國屋書店Kinoppy｜電子書籍/小説/コミック: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 6,309 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does 紀伊國屋書店Kinoppy｜電子書籍/小説/コミック make per month?▴
Based on our ML-calibrated revenue forecast, 紀伊國屋書店Kinoppy｜電子書籍/小説/コミック earns approximately $838/mo. This is a US-storefront-equivalent estimate; global revenue can be several times larger for internationally-distributed apps. See the methodology page for the full formula and confidence bands.
What apps are like 紀伊國屋書店Kinoppy｜電子書籍/小説/コミック?▴
Browse the full Books & Reference category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
Who makes 紀伊國屋書店Kinoppy｜電子書籍/小説/コミック?▴
紀伊國屋書店Kinoppy｜電子書籍/小説/コミック is published by Kinokuniya Company Ltd on the Google Play Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is 紀伊國屋書店Kinoppy｜電子書籍/小説/コミック's BU Score?▴
紀伊國屋書店Kinoppy｜電子書籍/小説/コミック has a BU Score of 60/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.