Bookshelf: Bücher Tracken
74
Quality Score
Strong
Bookshelf: Bücher Tracken
Medium confidence
✍️ bumetric analysis
“
Bookshelf: Bücher Tracken is an iOS app from Alexander Gerrese in the Food & Drink category, currently rated 4.6★ across 3,895 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 74: Strong (healthy traction). For a Food & Drink app, that means healthy traction. 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
$11.2K
per month
→
12-mo forecast
$11.6K – $24.2K
per month
→
24-mo forecast
$14.3K – $43.0K
per month
MID 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
$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 ~9 months 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 (283 MB) | +$40K |
| ⚙ Food & Drink complexity ×1.10 | +$9K |
Total estimate
$100K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$175K
↳ What it would sell for · not monthly revenue
Marketplace range $125K – $225K · 16× MRR multiple
💸
~1.8× build cost (break-even+)
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 ≥ 4.4 (solid) | +8% |
Final multiple
16× MRR
👥 Estimated audience size
385K
Lifetime downloads (US-equivalent)
Monthly active
53K
Daily active
10K
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 |
| 🔁 Food & Drink D30 retention | 14% |
| 📍 DAU / MAU stickiness | 0.20 |
DAU / MAU
20% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$11.2K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$10.6K – $17.7K
12 months
$11.6K – $24.2K
24 months
$14.3K – $43.0K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Below median · 49/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
5.0
Product Quality
8.3
Revenue Strength
4.0
Monetization Maturity
1.0
Defensibility
3.8
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $7K - $16K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.63★ across 3,895 reviews — strong (top 10%).
- 📍 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 = $201K-$357K.
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 13 of 13 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 | |
| Excellent rating (4.6★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Low install base (3,895 ratings)METRIC | +$1,500 | |
| Multilingual (24 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| too expensiveREVIEW | −$1,000 | |
| priceyREVIEW | −$800 | |
| Established app (6y old)METRIC | +$800 |
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 · v2.18.13
Lots of performance improvements and bug fixes in this one. Bookshelf should feel faster and more reliable across the app, especially when importing books, syncing with iCloud, editing covers, opening shared links, and working with larger libraries.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Bookshelf: Bücher Tracken
- Developer
- Alexander Gerrese
- Bundle ID
- alexgerrese.summarize
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 4+
- Languages
- HR, CS, NL, EN, FR, DE, EL, HI, HU, ID, IT, JA, KO, NB, PL, PT, RU, ZH, ES, SV, TH, TR, UK, VI
Company
- Website
- Not found
- Tagline
- Bookshelf: Library & TBR Tracker
- Description
- Bookshelf is the only reading tracker app that helps you track your library, build a lasting reading habit, and better remember what you read. Beautiful. Fast. No signup required.
- 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
- $11.2K/mo
- Top-grossing rank
- 🇮🇳#71 /100 🇧🇷#95 /100
- 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 growth3,895 ratings+31% lifetimeShow 3-year history estimate ▾
Tracked (44 weeks) Pre-tracking estimate (35 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Top Countries — Grossing Rank2 countries
🇮🇳IN#71 /100
🇧🇷BR#95 /100
📊Category Rank Trajectory#71 now · best #66 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
🚀Version Release Timeline3 releases tracked
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
Bookshelf helps you track your books, build a lasting reading habit, and better remember what you read—now with powerful AI-powered discovery tools to help you find your next great read!
Add books you’ve read, books you’re reading, and books you want to read. Improve your reading habits with insightful stats and trend reports. Stay motivated with reading goals, streaks, and reminders. Remember what you read by writing and reviewing notes and quotes.
BUILD YOUR LIBRARY
• Import & Sync – Import your existing libraries from Goodreads, Kindle, StoryGraph, or Reading List with a tap.… View full description on the official store →
Add books you’ve read, books you’re reading, and books you want to read. Improve your reading habits with insightful stats and trend reports. Stay motivated with reading goals, streaks, and reminders. Remember what you read by writing and reviewing notes and quotes.
BUILD YOUR LIBRARY
• Import & Sync – Import your existing libraries from Goodreads, Kindle, StoryGraph, or Reading List with a tap.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 283 MB🔞 4+📱 iOS 17.0+🔖 v2.18.13🔄 updated 0d ago🌐 HR, CS, NL, EN, FR +19📂 Food & Drink💰 Paid
📅
What Worked™ · Development Pipeline
10 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 ↑ 3.22 → 4.63 (improved 1.41★)
2026-05
📈
Crossed 500 ratings — social-proof flywheel kicking in
2026-03
⭐
Rating ↓ 4.40 → 3.22 (dropped 1.18★)
2026-03
⭐
Rating ↑ 3.22 → 4.40 (improved 1.18★)
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
2024-02
📈
Crossed 100 ratings — social-proof flywheel kicking in
2023-07
📈
Crossed 50 ratings — social-proof flywheel kicking in
2020-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
2019-07
⭐
Rating ↓ 5.00 → 4.00 (dropped 1.00★)
2019-07
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.53875★ | 271 | 4.53875★ this version |
| 🇧🇷 BR | 4.83471★ | 121 | 4.83471★ this version |
| 🇨🇦 CA | 4.49362★ | 314 | 4.49362★ this version |
| 🇩🇪 DE | 4.34999★ | 260 | 4.34999★ this version |
| 🇫🇷 FR | 4.50164★ | 305 | 4.50164★ this version |
| 🇬🇧 GB | 4.49178★ | 791 | 4.49178★ this version |
| 🇮🇳 IN | 4.36585★ | 82 | 4.36585★ this version |
| 🇯🇵 JP | 4.78946★ | 19 | 4.78946★ this version |
| 🇺🇸 US | 4.63258★ | 3,941 | 4.63258★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Bookshelf: Bücher Tracken: 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: 3,895 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Bookshelf make per month?▴
Based on our ML-calibrated revenue forecast, Bookshelf earns approximately $11K/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 Bookshelf?▴
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 Bookshelf?▴
Bookshelf is published by Alexander Gerrese 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 Bookshelf's BU Score?▴
Bookshelf has a BU Score of 74/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.