Libby, die Bibliotheks-App
92
Quality Score
Transcendent
Libby, die Bibliotheks-App
High confidence
✍️ bumetric analysis
“
This app carves out a unique niche by digitizing local library borrowing, directly competing with traditional ebook retailers like Amazon Kindle and Apple Books, but with a free-to-user model tied to library memberships. Its exceptionally high user rating across over four million reviews, combined with estimated monthly revenue in the low five figures, signals strong user satisfaction and significant traction. This is a mature, established app, past its initial growth spurt, now focused on sustained engagement and incremental feature development. For apps in the content consumption space, a common monetization observation is the potential for premium features beyond core access, such as enhanced reader customization, cross-device syncing for non-Kindle users, or even exclusive early access to certain digital titles, which could significantly boost ARPU within a freemium model.
BU Score 92 · Transcendent — category-leading momentum. The full Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track snapshot history and revenue forecast in the Performance section below.
💰 Monthly revenue · now vs forecast
● Right now
$18.0M
per month
→
12-mo forecast
$18.5M – $24.6M
per month
→
24-mo forecast
$20.6M – $30.9M
per month
MEGA 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
$55K
↳ What it cost to build · not monthly revenue
Likely range $40K – $75K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in <1 month 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 |
| ⚙ Food & Drink complexity ×1.10 | +$5K |
Total estimate
$55K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$800K
↳ What it would sell for · not monthly revenue
Marketplace range $600K – $1.0M · 19× MRR multiple
💸
~15× return on build cost
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 ≥ 4.7 (premium) | +15% |
| ⭐ Mature user base (1M+ ratings) | +8% |
Final multiple
19× MRR
👥 Estimated audience size
425.5M
Lifetime downloads (US-equivalent)
Monthly active
59.5M
Daily active
11.5M
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
19% sticky
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$18.0M/mo · ML-estimated from 234 triggers
Growth rate
+1.5% MoM · MEGA tier baseline (compound monthly)
6 months
$17.7M – $21.7M
12 months
$18.5M – $24.6M
24 months
$20.6M – $30.9M
Compound growth at +1.5% MoM (tier baseline for MEGA). Range widens with horizon — typical noise band ±10% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Mixed signals · 62/100MEGA TIERcompetitive but cautiousGrowth Velocity
5.0
Founder Strength
7.3
Product Quality
9.7
Revenue Strength
7.3
Monetization Maturity
1.0
Defensibility
7.4
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Strong — $7.2M - $36.0M/mo · MEGA tier · low confidence, trajectory unclear.
- ⭐ Quality: 4.85★ across 4,259,618 reviews — exceptional (top 1% in category).
- 📍 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 32-48× monthly = $576.0M-$864.0M.
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 9 of 9 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| High install base (4,259,618 ratings)METRIC | +$12,000 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Multilingual (19 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| 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.
🆕 What's New · v9.2.1
Audio playback fixes for very (very) old iPhones and iPads.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Libby, die Bibliotheks-App
- Developer
- OverDrive, Inc.
- Bundle ID
- com.overdrive.dewey
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 9+
- Languages
- DA, NL, EN, FR, DE, IS, IT, JA, KO, MS, MI, PT, RU, ZH, ES, SV, TA, ZH, CY
Company
- Website
- www.overdrive.com
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- 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
- $41.9K/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
Contacts & Socials data not yet collected for this app.
✨AI Revenue EstimateCONFIDENCE: MEDIUM
The iOS app "Libby, die Bibliotheks-App" itself does not generate direct revenue from end-users, as it is a free service for borrowing digital content from libraries. Sensor Tower data explicitly states that Libby generates no revenue from in-app purchases or subscriptions. The revenue is generated by its parent company, OverDrive, Inc., through a business-to-business (B2B) model where libraries pay licensing fees for digital content. OverDrive's estimated annual revenue is reported to be $420 million.
Sources mentioned: Sensor Tower, Bitscale, Owler, Reddit, Wikipedia, BreaK-Even Point Calculator, The Columbia Journal of Law & the Arts
📈Ratings growth4,259,618 ratings+22% lifetimeShow 3-year history estimate ▾
Tracked (5 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.
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
All over the world, local libraries offer millions of ebooks and audiobooks. You can borrow them — for free, instantly — with a library card and Libby: the award-winning, much-loved app for libraries.
• Browse your library’s digital catalog of books — from classics to NYT best-sellers
• Borrow and enjoy ebooks, audiobooks, and magazines
• Download titles for offline reading, or stream them to save space
• Send ebooks to your Kindle (U.S. libraries only)
• Listen to audiobooks via Apple CarPlay
• Use tags to create your must-read list and any other book lists you want… View full description on the official store →
• Browse your library’s digital catalog of books — from classics to NYT best-sellers
• Borrow and enjoy ebooks, audiobooks, and magazines
• Download titles for offline reading, or stream them to save space
• Send ebooks to your Kindle (U.S. libraries only)
• Listen to audiobooks via Apple CarPlay
• Use tags to create your must-read list and any other book lists you want… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 13 MB🔞 9+📱 iOS 10.0+🔖 v9.2.1🔄 updated 0d ago🌐 DA, NL, EN, FR, DE +14📂 Food & Drink💰 Paid
📅
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
🔄
Monetization changed: freemium → free
2026-03
⭐
Rating ↑ 4.33 → 4.70 (improved 0.37★)
2026-03
📈
Crossed 1,000 ratings — social-proof flywheel kicking in
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
2026-02
📈
Crossed 100 ratings — social-proof flywheel kicking in
2026-02
📈
Crossed 50 ratings — social-proof flywheel kicking in
2026-02
🚀
First tracked snapshot — initial data captured
2026-02
⭐
Rating ↑ 4.00 → 4.50 (improved 0.50★)
2026-02
📈
Crossed 10 ratings — social-proof flywheel kicking in
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.73836★ | 130,744 | 4.73836★ this version |
| 🇧🇷 BR | 4.9253★ | 1,004 | 4.9253★ this version |
| 🇨🇦 CA | 4.78979★ | 469,940 | 4.78979★ this version |
| 🇩🇪 DE | 4.71386★ | 20,923 | 4.71386★ this version |
| 🇫🇷 FR | 4.80682★ | 1,408 | 4.80682★ this version |
| 🇬🇧 GB | 4.72028★ | 118,617 | 4.72028★ this version |
| 🇮🇳 IN | 4.84887★ | 4,592 | 4.84887★ this version |
| 🇯🇵 JP | 4.62047★ | 2,735 | 4.62047★ this version |
| 🇺🇸 US | 4.85264★ | 4,293,850 | 4.85264★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Libby, die Bibliotheks-App: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by OverDrive, Inc.
View all →📦 Portfolio summaryINDIE studio
6apps·$57K/mocombined
Lead-app heavy — top app contributes 73%
About this analysis
Why high confidence: 4,259,618 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does Libby, die Bibliotheks-App make per month?▴
Based on our ML-calibrated revenue forecast, Libby, die Bibliotheks-App earns approximately $41K/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 Libby, die Bibliotheks-App?▴
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 Libby, die Bibliotheks-App?▴
Libby, die Bibliotheks-App is published by OverDrive, Inc. 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 Libby, die Bibliotheks-App's BU Score?▴
Libby, die Bibliotheks-App has a BU Score of 92/100 (Transcendent). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.