iBunkoS
49
Quality Score
Emerging
iBunkoS
Low confidence
✍️ bumetric analysis
“
iBunkoS is an iOS app from DWANGO Co., Ltd. in the Food & Drink category, currently rated 4.4★ across 9 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 49: Emerging (early traction worth watching). For a Food & Drink app, that means early traction worth watching. 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
$1.8K
per month
→
12-mo forecast
$1.5K – $5.5K
per month
→
24-mo forecast
$1.4K – $12.8K
per month
INDIE tierFREE
💡 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
$55K
↳ What it cost to build · not monthly revenue
Likely range $40K – $75K
$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 |
| ⚙ Food & Drink complexity ×1.10 | +$5K |
Total estimate
$55K
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$1.8K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$1.5K – $3.5K
12 months
$1.5K – $5.5K
24 months
$1.4K – $12.8K
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
Pre-traction · 36/100INDIE TIERFREE (NO MONETIZATION)limited signalGrowth Velocity
5.0
Founder Strength
3.3
Product Quality
2.1
Revenue Strength
3.2
Monetization Maturity
0.5
Defensibility
4.5
Market Position
2.0
Operational Safety
8.5
- 💰 Revenue: Modest — $700 - $4377/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.44★ across 9 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Low — rating drift -1.60 ★ (recent 50 vs lifetime).
🎯 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 = $31K-$56K.
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:
| Paid app ($0.00)METRIC | +$2,800 | |
| Mature app (15y old)METRIC | +$1,500 | |
| Good rating (4.4★)METRIC | +$800 | |
| Pre-traction phase (9 ratings)METRIC | −$300 |
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.
🆕 What's New · v3.4.42
- minor bug fixes
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- iBunkoS
- Developer
- DWANGO Co., Ltd.
- Bundle ID
- com.nagisa.ibunkos
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 4+
- Languages
- EN, JA, ZH
Company
- Website
- Not found
- Tagline
- i文庫｜dwango
- Description
- i文庫なら、多くの文学作品など無料でインターネット上に公開している電子ライブラリ「青空文庫」の書籍コンテンツが手軽に読める！
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $201/mo
- Top-grossing rank
- Outside top 100 in US Food & Drink
- 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 growth9 ratings+800% lifetimeShow 3-year history estimate ▾
Tracked (14 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
💰Pricing History$0.00 → $2.99 (+0%)
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
iBunkoS provides you the best way to read novels, documents and comic books on iPhone.
Thanks to a realistic interface, you can enjoy reading as you would with a real paper book. Reading on your iPhone is now easier than ever!
This is a great iPhone app for all the book lovers!
Read books and comics in vertical setting with comfort
・Support both horizontal (left open) and vertical (right open) writings.
・The app automatically detects the binding direction of a PDF document.
Double page spread and page effect
・When viewed landscape mode, the pages switch to the double page spread.… View full description on the official store →
Thanks to a realistic interface, you can enjoy reading as you would with a real paper book. Reading on your iPhone is now easier than ever!
This is a great iPhone app for all the book lovers!
Read books and comics in vertical setting with comfort
・Support both horizontal (left open) and vertical (right open) writings.
・The app automatically detects the binding direction of a PDF document.
Double page spread and page effect
・When viewed landscape mode, the pages switch to the double page spread.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 34 MB🔞 4+📱 iOS 12.0+🔖 v3.4.42🔄 updated 0d ago🌐 EN, JA, ZH📂 Food & Drink💰 Paid
📅
What Worked™ · Development Pipeline
7 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-05
⭐
Rating ↓ 5.00 → 4.44 (dropped 0.56★)
2026-05
💲
Went paid — introduced $2.99 price point
2026-03
⭐
Rating ↑ 4.50 → 5.00 (improved 0.50★)
2018-11
📈
Crossed 10 ratings — social-proof flywheel kicking in
2012-08
⭐
Rating ↓ 4.67 → 4.00 (dropped 0.67★)
2012-03
⭐
Rating ↓ 5.00 → 4.50 (dropped 0.50★)
2011-04
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 68 reviews across 4 markets● 24% positive · ● 75% neutral · ● 2% negative · Rating drift: -1.60★ (declining — recent 50: 2.84★ vs lifetime: 4.44★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇨🇦 CA
+0.86
🇺🇸 US
+0.70
🇬🇧 GB
+0.41
🇯🇵 JP
+0.00
Top praise themes
chinese store ×3 reading ×9 iphone ×6 read ×5 support ×5 ipad ×4 epub ×4 please ×3
Top complaint themes
— no recurring complaint themes
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 3★ | 2 | 3★ this version |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇨🇦 CA | 5★ | 2 | 5★ this version |
| 🇩🇪 DE | 5★ | 1 | 5★ this version |
| 🇫🇷 FR | 5★ | 1 | 5★ this version |
| 🇬🇧 GB | 3★ | 4 | 3★ this version |
| 🇮🇳 IN | 0★ | 0 | — |
| 🇯🇵 JP | 3.10303★ | 165 | 3.10303★ this version |
| 🇺🇸 US | 4.44444★ | 9 | 4.44444★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
About this analysis
Why low confidence: only 9 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
iBunkoS is a early-stage iOS app in the food & drink space with weak public traction — only 9 ratings, no founder-verified MRR, and not ranked in any monitored grossing chart. The app appears to be monetised, but public signals are too sparse for a precise revenue estimate.
Bottom line: treat all revenue, audience and acquisition-value numbers on this page as directional only — not founder-verified facts.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does iBunkoS make per month?▴
Low-confidence model estimate. iBunkoS has only 9 App Store ratings, so our revenue model has very little signal to work with — treat the ~$200/mo figure as directional only, not a verified MRR. No founder-verified revenue data is available for this app. See methodology for the formula and confidence bands.
What apps are like iBunkoS?▴
Browse the full Food & Drink 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 iBunkoS?▴
iBunkoS is published by DWANGO Co., Ltd. on the Apple App 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 iBunkoS's BU Score?▴
iBunkoS has a BU Score of 49/100 (Emerging). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.