52
Quality Score
Solid
Bookie - Відстеження читання
Medium confidence
✍️ bumetric analysis
“
Bookie - Відстеження читання is an iOS app from Jakub Milcarz in the Food & Drink category, currently rated 4.2★ across 106 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Quality Score is 52: Solid (established niche player). For a Food & Drink 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
$500
per month
→
12-mo forecast
$437 – $1575
per month
→
24-mo forecast
$405 – $3644
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
$120K
↳ What it cost to build · not monthly revenue
Likely range $90K – $160K
$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 |
| 📦Asset bundle (208 MB) | +$40K |
| ⚙Food & Drink complexity ×1.10 | +$9K |
| ⚙3.5y maintenance × ~1-person team | +$20K |
Total estimate$120K
👥 Estimated audience size
8.7K
Lifetime downloads (US-equivalent)
Monthly active
1.1K
Daily active
220
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
| 📲Food & Drink engagement | ~100 installs / rating |
| 📅3.5y of rating accumulation | -17% |
| 🔁Food & Drink D30 retention | 14% |
| 📍DAU / MAU stickiness | 0.20 |
DAU / MAU20% sticky
🛠 Estimated tech stack
🍎
Native iOS (SwiftUI)
Medium confidence · 55%
Also possible
React NativeFlutter
Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.
Signals we read
| 📦App bundle size | 208 MB |
| 🏷Category context | Food & Drink |
| 📦Large iOS bundle | → Native SwiftUI (post-2020 era) + assets |
💀 Maintenance status
Active
15%
Last shipped 2026-05-15 · 10 days ago
0 · Active50 · At risk100 · Abandoned
Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.
Risk signals
| 📅10 days since last update | Active development |
| 👥Small user base (106 ratings) + 3.5y old | +10% (solo-project pattern) |
VerdictActive
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$500/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: low defensibility moat
6 months
$426 – $993
12 months
$437 – $1.6K
24 months
$405 – $3.6K
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 · 40/100INDIE TIERexpected for tierRevenue Strength
2.7
Product Quality
5.8
Market Position
2.0
Growth Velocity
5.0
Defensibility
2.9
Operational Safety
10.0
Founder Strength
2.9
Monetization Maturity
1.0
- 💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.17★ across 106 reviews — below category median.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: dev shipping weekly.
- ⚠️ 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 = $9K-$16K.
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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Multilingual (10 languages)METRIC | +$1,500 | |
| Good rating (4.2★)METRIC | +$800 | |
| Established app (3y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (106 ratings)METRIC | +$400 |
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.
App Specs
🔐 Own this app? Claim & verify MRR →💾 208 MB🔞 4+📱 iOS 17.0+🔖 v2026.2.0🔄 updated 1w ago🌐 EN, FR, DE, IT, JA +5📂 Food & Drink💰 Paid🚀 Launched 2022 (3y old)
📝 About this app
Bookie: Book Tracker is your ultimate reading companion, a powerful book tracker, reading journal, and digital bookshelf. Experience a world-class app where accountability meets stunning, next-generation design. Whether you're planning your next reading challenge or capturing insights from your latest novel, Bookie: Book Tracker makes it effortless to stay organized and inspired.
The Next Evolution of Design: Liquid Glass & Themes
Stop settling for plain interfaces. Bookie: Book Tracker introduces two revolutionary features that transform your digital bookshelf:… View full description on the official store →
The Next Evolution of Design: Liquid Glass & Themes
Stop settling for plain interfaces. Bookie: Book Tracker introduces two revolutionary features that transform your digital bookshelf:… View full description on the official store →
🆕 What's New · v2026.2.0
Welcome to the Spring 2026 update! This season, we are heavily focused on polishing your favorite reading tracker and delivering a stronger, more seamless experience across the entire app.
Here is what’s new in Bookie: Book Tracker:
1.… Full release notes →
Here is what’s new in Bookie: Book Tracker:
1.… Full release notes →
📅
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 →
2026-03
⭐
Rating ↑ 2.60 → 4.00 (improved 1.40★)
2024-11
📈
Crossed 10 ratings — social-proof flywheel kicking in
2024-11
⭐
Rating ↓ 3.80 → 3.33 (dropped 0.47★)
2024-11
⭐
Rating ↑ 3.00 → 3.50 (improved 0.50★)
2024-11
⭐
Rating ↑ 2.00 → 3.00 (improved 1.00★)
2024-10
⭐
Rating ↓ 3.00 → 2.00 (dropped 1.00★)
2024-09
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.16981★ | 106 | 4.16981★ this version |
| 🇬🇧 GB | 4.16667★ | 6 | 4.16667★ this version |
| 🇩🇪 DE | 3.07143★ | 14 | 3.07143★ this version |
| 🇫🇷 FR | 3.28571★ | 14 | 3.28571★ this version |
| 🇯🇵 JP | 3.5★ | 2 | 3.5★ this version |
| 🇨🇦 CA | 3.83333★ | 6 | 3.83333★ this version |
| 🇦🇺 AU | 5★ | 1 | 5★ this version |
| 🇧🇷 BR | 5★ | 4 | 5★ this version |
| 🇮🇳 IN | 4.5★ | 2 | 4.5★ this version |
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Bookie - Відстеження читання
- Developer
- Jakub Milcarz
- Bundle ID
- com.kubamilcarz.Read-Us
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 4+
- Languages
- EN, FR, DE, IT, JA, PL, PT, ZH, ES, UK
Company
- Website
- doors-report-rb8.craft.me
- 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
- $86/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.
⭐Recent App Store Reviews19 latest · avg 2.58★ · 26.3% 5★ · 36.8% 1★
5★5 (26%)
4★0 (0%)
3★3 (16%)
2★4 (21%)
1★7 (37%)
+0 ratings/week
Praise: love ×1 recommend ×1Complaints: crash ×2 subscription ×2 bug ×1
Top positive
★★★★★ 打开图式时闪退
Mac15.1.1系统，打开图书时闪退…
★★★★★ 挺不错的软件
好用…
Top negative
★☆☆☆☆ Overall use
I bought the lifetime membership to unlock all features. Was really hard to use, especially getting books in certain folders and even harder to undo books I added. Wrote for help and never heard back. Not worth $50.…
★☆☆☆☆ Will not import
Not good…
📈Ratings growth106 ratings+266% lifetimeShow 3-year history estimate ▾
Tracked (15 weeks) Pre-tracking estimate (35 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.
Full revenue analysis
Read the article-style breakdown for Bookie - Відстеження читання: 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: 106 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does Bookie - Відстеження читання make per month?▴
Based on our ML-calibrated revenue forecast, Bookie - Відстеження читання earns approximately $86/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.
Is Bookie - Відстеження читання profitable?▴
With estimated build cost $120K and monthly revenue $86, Bookie - Відстеження читання looks well below break-even — current monthly revenue is much smaller than the estimated build cost. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Bookie - Відстеження читання have?▴
Estimated audience: ~8K lifetime downloads, ~1K monthly active users, and ~220 daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
What apps are like Bookie - Відстеження читання?▴
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.
What is Bookie - Відстеження читання built with?▴
Our heuristic places Bookie - Відстеження читання on the Native iOS (SwiftUI) stack (Medium confidence, 55%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: React Native, Flutter.
Is Bookie - Відстеження читання still actively maintained?▴
Maintenance status: Active (15% abandonment risk). Last shipped version was 10 days ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
When was Bookie - Відстеження читання last updated?▴
Bookie - Відстеження читання last shipped a new version on 2026-05-15 — less than a month ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Bookie - Відстеження читання?▴
Bookie - Відстеження читання is published by Jakub Milcarz 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 Bookie - Відстеження читання's BU Score?▴
Bookie - Відстеження читання has a BU Score of 52/100 (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.