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76
BU Score
Strong

Bookshelf

4.7 ✍️ Editor
✍️ BU Analytics Review

Bookshelf is an iOS app from VitalSource Technologies, Inc. in the Education category, currently rated 4.7★ across 77,524 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 76Strong (healthy traction). For a Education app, that means healthy traction.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
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Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue 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 12 of 12 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (77,524 ratings)METRIC
+$5,500
Excellent rating (4.7★)METRIC
+$2,200
bugsREVIEW
−$1,800
5 starREVIEW
+$1,800
excellent appREVIEW
+$1,500
Mature app (15y old)METRIC
+$1,500
Multilingual (32 languages)METRIC
+$1,500
highly recommendREVIEW
+$1,400
slowREVIEW
−$1,200
too expensiveREVIEW
−$1,000
support teamREVIEW
+$900
Ad-supported / freemiumMETRIC
+$600
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 26
Feb 26
Mar 26
Apr 26
May 26

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 185 MB🔞 4+📱 iOS 17.6+🔖 v11.3.2🔄 updated 1mo ago🌐 AR, BG, CA, CS, DA +27📂 Education💰 Paid🚀 Launched 2010 (15y old)

📝 About this app

With Bookshelf, you can enjoy a digital-first, comprehensive study experience from the convenience of your iPad or iPhone. Access all of your VitalSource textbooks and study anytime, anywhere.

Bookshelf Features:
• Download books to your iOS device for 100% offline reading.
• Customize highlighters and add notes for a rich study experience.
• Create flashcards with text and images to learn concepts faster.
• Personalize font, font size, and background colors to make reading easier.
• Listen to your books and learn on the go with Read Aloud.
• Sync your current reading position and all your work across devices so you can easily pick up where you left off.
• Built with accessibility in mind.

Requirements:
• VitalSource Bookshelf account
• Access to one or more VitalSource textbooks
• iOS 17+

🆕 What's New · v11.3.2

* MLA, APA, Harvard, and Vancouver citation formats are available
* Updated Explore UI
* Explore content is integrated into the main search results
* Various bug fixes

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Bookshelf
Developer
VitalSource Technologies, Inc.
Bundle ID
com.vitalsource.Bookshelf
App Store URL
Open in App Store
Category
Education
Content rating
4+
Languages
AR, BG, CA, CS, DA, NL, EN, FI, FR, DE, EL, HE, HI, HU, IS, GA, IT, JA, KO, NB, PL, PT, RO, RU, ZH, ES, SV, TH, ZH, TR, VI, CY

Company

Website
Not found
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
$9.4K/mo
Top-grossing rank
Outside top 100 in US Education
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
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
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
AI Revenue EstimateCONFIDENCE: LOW
Specific revenue for the 'Bookshelf' iOS app by VitalSource Technologies, Inc. is not publicly available. VitalSource's business model primarily involves partnerships with educational institutions and publishers to deliver digital course materials, often through institutional licenses or 'Inclusive Access' programs, rather than direct in-app purchases or subscriptions for the iOS app itself. Estimates for VitalSource Technologies, Inc.'s overall annual revenue vary significantly across sources, ranging from $15.2 million to $74 million, $269 million, and even between $250 million and $500 million.
Sources mentioned: Growjo, Owler, Bitscale, ECDB, LeadIQ, VitalSource Success
Recent App Store Reviews49 latest · avg 2.16★ · 16.3% 5★ · 51.0% 1★
5★
8 (16%)
4★
0 (0%)
3★
9 (18%)
2★
7 (14%)
1★
25 (51%)
+86 ratings/week
Praise: love ×5 great ×5 best ×2Complaints: terrible ×7 bug ×2 hate ×2 broken ×2 crash ×1
Top positive
★★★★★ The Hard Facts
This app is very helpful. It makes reading more enjoyable and efficient to get thru the material. I love the ability to copy and paste sections and the ability to take notes…
★★★★★ Book
It fine…
Top negative
★☆☆☆☆ Terrible AI voice
What’s the point of me paying for these books if your AI voice is so terrible that we can’t understand it?…
★☆☆☆☆ Bad
Developers should read a book in Apple Books, then read a book here and ask themselves if they’re happy with what they’ve made. I’m certainly not - the UX is trash.…
📈Ratings growth77,524 ratings+16% lifetimeShow 3-year history estimate ▾May 2023Oct 2025May 2026
Tracked (44 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.
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