54
BU Score
Solid
z Library Books & Audiobooks
✍️ BU Analytics Review
“
z Library Books & Audiobooks is an iOS app from Salma Ourdi in the Food & Drink category, currently rated 4.0★ across 621 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.
Our BU Score puts it at 54 — Solid (established niche player). For a Food & Drink app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
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 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| bugsREVIEW | −$1,800 | |
| highly recommendREVIEW | +$1,400 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (621 ratings)METRIC | +$400 | |
| Single-language (English only)METRIC | −$400 | |
| Growing app (2y old)METRIC | +$200 |
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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Jul 24
Aug 24
Oct 24
Nov 24
Dec 24
Jan 25
Mar 25
Jul 25
Aug 25
Sep 25
Nov 25
Mar 26
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 56 MB🔞 17+📱 iOS 13.0+🔖 v14.9.1🔄 updated 2mo ago🌐 EN📂 Food & Drink💰 Free🚀 Launched 2024 (2y old)
📝 About this app
Introducing z Library - the ultimate digital sanctuary for book enthusiasts and knowledge seekers alike. Boasting a staggering collection of over 50 million books and audiobooks, e z Library is your gateway to an unparalleled literary universe. With z Library, you can effortlessly download and immerse yourself in captivating tales and enlightening non-fiction works from the comfort of your device. Dive deeper into the narratives, pose questions, and unravel the hidden depths within the pages. Personalize your literary journey with customizable settings, curated reading lists, and tailored recommendations that evolve alongside your ever-changing tastes. Embrace the future of reading with e z Library and embark on a transformative adventure through the realms of literature.
The App requires Subscription to access books and audiobooks
Privacy Policy: https://www.iubenda.com/privacy-policy/84415451
Terms and Conditions (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
The App requires Subscription to access books and audiobooks
Privacy Policy: https://www.iubenda.com/privacy-policy/84415451
Terms and Conditions (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
🆕 What's New · v14.9.1
+Added more recent books and audiobook
+Improved the reading experience
+Made the UI more flexible for different types of devices
+Bug Fixes
+Improved the reading experience
+Made the UI more flexible for different types of devices
+Bug Fixes
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- z Library Books & Audiobooks
- Developer
- Salma Ourdi
- Bundle ID
- com.zlibrary.zlibrarybooks
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 17+
- Languages
- EN
Company
- Website
- Not found
- 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
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $208/mo
- Top-grossing rank
- Outside top 100 in US Food & Drink
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- https://apps.apple.com/us/app/letterloop-group-newsletters/id6468623700
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://apps.apple.com/us/iphone/story/id1895675718
📈Ratings growth621 ratings+918% lifetimeShow 3-year history estimate ▾
Tracked (33 weeks) Pre-tracking estimate (25 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.
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