Waka 4.0 – Ebook & Audiobook
48
Quality Score
Emerging
Waka 4.0 – Ebook & Audiobook
Low confidence
✍️ bumetric analysis
“
Waka 4.0 – Ebook & Audiobook is an iOS app from WAKA EBOOK CORPORATION in the Food & Drink category, currently rated 3.3★ across 96 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 48: 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
$200
per month
→
12-mo forecast
$100 – $931
per month
→
24-mo forecast
$100 – $2790
per month
MICRO 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
🤖Also on Android
$1.1K/mo · 11K ratings · 3.4★
View →
ONE-TIME · BUILD
💰 Estimated build cost
$100K
↳ What it cost to build · not monthly revenue
Likely range $75K – $135K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~4.3y at current MRR
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 |
| 📦 Asset bundle (397 MB) | +$40K |
| ⚙ Food & Drink complexity ×1.10 | +$9K |
Total estimate
$100K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$20K
↳ What it would sell for · not monthly revenue
Marketplace range $15K – $30K · 11× MRR multiple
💸
~0.2× 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 |
| ⭐ ★ rating < 3.5 (weak) | -18% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
11× MRR
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$200/mo · ML-estimated from 234 triggers
Growth rate
+8.0% MoM · MICRO tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$127 – $508
12 months
$100 – $931
24 months
$100 – $2.8K
Compound growth at +8.0% MoM (tier baseline for MICRO). Range widens with horizon — typical noise band ±60% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Insufficient data · 36/100MICRO TIERtoo early to scoreGrowth Velocity
5.0
Founder Strength
4.1
Product Quality
2.6
Revenue Strength
2.3
Monetization Maturity
1.0
Defensibility
6.0
Market Position
0.0
Operational Safety
8.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 3.31★ across 96 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Moderate — 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 = $3K-$6K. Portfolio play ($1K/mo combined) commands premium.
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 7 of 7 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 | |
| bugsREVIEW | −$1,800 | |
| Below-average rating (3.3★)METRIC | −$1,500 | |
| Mature app (11y old)METRIC | +$1,500 | |
| slowREVIEW | −$1,200 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (96 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 · v8.7.5
Sửa lỗi người dùng phản hồi trên ios 26.0
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Waka 4.0 – Ebook & Audiobook
- Developer
- WAKA EBOOK CORPORATION
- Bundle ID
- vn.com.vega.vegabook
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 9+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Waka Thư Viện Sách Điện Tử Hàng Đầu Việt Nam
- Description
- Ebook, audiobook và sách giấy tất cả trên một ứng dụng. Truyện ngôn tình, self-help, truyện tranh. Đọc offline, không quảng cáo. Thử miễn phí.
- Founded
- Not found
- HQ / Address
- Hà Nội
- 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
- $1.9K/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
- Socials
- Not found
- support@waka.vn
- Phone
- 0108796796
- Contact page
- Not found
- About page
- Not found
📈Ratings growth96 ratings+9500% lifetimeShow 3-year history estimate ▾
Tracked (53 weeks) Pre-tracking estimate (36 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.
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
"Waka – Ứng dụng đọc sách online và nghe sách nói hàng đầu Việt Nam.
Kho ebook, sách nói, truyện ngôn tình, truyện tranh bản quyền. Đọc sách miễn phí, nghe sách mỗi ngày, tải về đọc offline!
Waka mang đến hơn 20.000+ đầu sách điện tử và sách nói bản quyền, truyện ngôn tình, truyện thiếu nhi, sách phát triển bản thân, sách tương tác… được cập nhật mỗi ngày.
Cùng Waka xây dựng văn hóa đọc hiện đại và đồng hành trên hành trình mang tri thức đến gần hơn với độc giả.
Điểm nổi bật của Waka:… View full description on the official store →
Kho ebook, sách nói, truyện ngôn tình, truyện tranh bản quyền. Đọc sách miễn phí, nghe sách mỗi ngày, tải về đọc offline!
Waka mang đến hơn 20.000+ đầu sách điện tử và sách nói bản quyền, truyện ngôn tình, truyện thiếu nhi, sách phát triển bản thân, sách tương tác… được cập nhật mỗi ngày.
Cùng Waka xây dựng văn hóa đọc hiện đại và đồng hành trên hành trình mang tri thức đến gần hơn với độc giả.
Điểm nổi bật của Waka:… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 397 MB🔞 9+📱 iOS 13.0+🔖 v8.7.5🔄 updated 0d ago🌐 EN📂 Food & Drink💰 Free
📅
What Worked™ · Development Pipeline
9 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
📈
Crossed 50 ratings — social-proof flywheel kicking in
2026-05
🔄
Monetization changed: paid → free
2026-03
⭐
Rating ↑ 2.70 → 3.30 (improved 0.60★)
2023-12
📈
Crossed 50 ratings — social-proof flywheel kicking in
2017-04
📈
Crossed 10 ratings — social-proof flywheel kicking in
2016-04
⭐
Rating ↓ 3.33 → 3.00 (dropped 0.33★)
2015-09
⭐
Rating ↓ 4.00 → 3.40 (dropped 0.60★)
2015-09
⭐
Rating ↓ 5.00 → 4.00 (dropped 1.00★)
2015-03
🚀
First tracked snapshot — initial data captured
🧪
Tech & Domain Intel — waka.vn
- Mail provider
- Google Workspace
- Tech stack
- Google Workspace · Mailgun
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
📝 Description
95
BU Score · Transcendent
More by WAKA EBOOK CORPORATION
View all →📦 Portfolio summaryINDIE studio
2apps·$1K/mocombined
⚠ Concentrated — top app contributes 100% of combined revenue (single-app dependency)
About this analysis
Why low confidence: only 96 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Waka 4.0 – Ebook & Audiobook make per month?▴
Based on our ML-calibrated revenue forecast, Waka 4.0 – Ebook & Audiobook earns approximately $1.9K/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 Waka 4.0 – Ebook & Audiobook?▴
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 Waka 4.0 – Ebook & Audiobook?▴
Waka 4.0 – Ebook & Audiobook is published by WAKA EBOOK CORPORATION 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 Waka 4.0 – Ebook & Audiobook's BU Score?▴
Waka 4.0 – Ebook & Audiobook has a BU Score of 48/100 (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.