52
BU Score
Solid
ShuBook 2M
✍️ bumetric analysis
“
ShuBook 2M is an iOS app from Ambibma Ltd. in the Food & Drink category, currently rated 4.7★ across 10 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Our BU Score puts it at 52: 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.
📊 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 4 of 4 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 (4.7★)METRIC | +$2,200 | |
| Mature app (11y old)METRIC | +$1,500 | |
| Pre-traction phase (10 ratings)METRIC | −$300 |
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.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 5 MB🔞 17+📱 iOS 9.0+🔖 v3.3.2🔄 updated 6y ago🌐 EN, ZH, ZH📂 Food & Drink💰 Paid🚀 Launched 2014 (11y old)
📝 About this app
ShuBook 2M is an OPDS and Calibre friendly book reader and organizer.
■ READING BOOKS
① Read DRM-free and password-free books of 3 fluid-layout formats and 5 fixed-layout formats
② Read fluid-layout formats (EPUB, TXT, UPDB) in horizontal page-turning mode
③ Read fixed-layout formats (PDF, RTF, DOC, XLS, PPT) in vertical page-scrolling mode
④ Read in both portrait and landscape orientation
⑤ Long press on text to lookup built-in dictionary, read aloud, and copy
⑥ Sync book reading progress via AirDrop and email
⑦ Support all compatible iPhone and iPad models at native screen resolution
⑧ Provide an option to auto-reopen last book read at the page you left off for fluid-layout formats and fixed-layout formats
For fluid-layout formats:
① Customize various layout parameters (font family, font size, text alignment, page margin, paragraph indentation, paragraph spacing, line spacing, letter spacing, hyphenation) and apply color themes
② Import unlimited number of user font files (TTF, TTC, OTF) via AirDrop, DropBox, Safari, Mail
③ Provide 16 built-in eye-pleasing color themes and 3 customizable color themes, where you can control background, text, heading and link colors
④ Jump to any page quickly and precisely via page slider with an unobtrusive reading progress line at the bottom of the page
⑤ Offer Night mode and brightness control by vertical swipe to complement iOS system brightness control via Control Center
⑥ Perform fast full text search and automatically save recent searches
⑦ Save an unlimited number of bookmarks per book
⑧ Long press on text to lookup built-in dictionary, read aloud, copy, search (and correct for UPDB)
■ MANAGING BOOKS
① Manage easily thousands of books in Library
② Group books by titles, authors, tags, and clusters with reading progress display
③ Group books by authors hierarchically in Library allowing multiple authors per book
④ Group books by tags hierarchically in Library allowing multiple tags per book
⑤ Group books by clusters hierarchically in Library allowing adding/removing/editing of clusters and re-ordering of clusters and their books
⑥ Search books in Library by title or author, or with help of the index bar
⑦ Edit book info, including title, author, tags and book cover image, for which you can choose from Album and online sources
■ GETTING BOOKS IN AND OUT
① Provide convenient access to millions of free ebooks from multiple sources (HTML websites and OPDS catalogs), including Dropbox and websites you input
② Perform TXT encoding auto-detection and TXT Smart Break after download/import of TXT files
③ Support downloading tags of books from OPDS catalogs
④ Smart batch download from calibre (and other OPDS servers on LAN) with an option to skip downloading books that are already in Library
⑤ Support iTunes File Sharing to import and export books
⑥ Send and receive books by email
■ READING BOOKS
① Read DRM-free and password-free books of 3 fluid-layout formats and 5 fixed-layout formats
② Read fluid-layout formats (EPUB, TXT, UPDB) in horizontal page-turning mode
③ Read fixed-layout formats (PDF, RTF, DOC, XLS, PPT) in vertical page-scrolling mode
④ Read in both portrait and landscape orientation
⑤ Long press on text to lookup built-in dictionary, read aloud, and copy
⑥ Sync book reading progress via AirDrop and email
⑦ Support all compatible iPhone and iPad models at native screen resolution
⑧ Provide an option to auto-reopen last book read at the page you left off for fluid-layout formats and fixed-layout formats
For fluid-layout formats:
① Customize various layout parameters (font family, font size, text alignment, page margin, paragraph indentation, paragraph spacing, line spacing, letter spacing, hyphenation) and apply color themes
② Import unlimited number of user font files (TTF, TTC, OTF) via AirDrop, DropBox, Safari, Mail
③ Provide 16 built-in eye-pleasing color themes and 3 customizable color themes, where you can control background, text, heading and link colors
④ Jump to any page quickly and precisely via page slider with an unobtrusive reading progress line at the bottom of the page
⑤ Offer Night mode and brightness control by vertical swipe to complement iOS system brightness control via Control Center
⑥ Perform fast full text search and automatically save recent searches
⑦ Save an unlimited number of bookmarks per book
⑧ Long press on text to lookup built-in dictionary, read aloud, copy, search (and correct for UPDB)
■ MANAGING BOOKS
① Manage easily thousands of books in Library
② Group books by titles, authors, tags, and clusters with reading progress display
③ Group books by authors hierarchically in Library allowing multiple authors per book
④ Group books by tags hierarchically in Library allowing multiple tags per book
⑤ Group books by clusters hierarchically in Library allowing adding/removing/editing of clusters and re-ordering of clusters and their books
⑥ Search books in Library by title or author, or with help of the index bar
⑦ Edit book info, including title, author, tags and book cover image, for which you can choose from Album and online sources
■ GETTING BOOKS IN AND OUT
① Provide convenient access to millions of free ebooks from multiple sources (HTML websites and OPDS catalogs), including Dropbox and websites you input
② Perform TXT encoding auto-detection and TXT Smart Break after download/import of TXT files
③ Support downloading tags of books from OPDS catalogs
④ Smart batch download from calibre (and other OPDS servers on LAN) with an option to skip downloading books that are already in Library
⑤ Support iTunes File Sharing to import and export books
⑥ Send and receive books by email
🆕 What's New · v3.3.2
- Fixed some minor bugs
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- ShuBook 2M
- Developer
- Ambibma Ltd.
- Bundle ID
- com.ambibma.ShuBook2M
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 17+
- Languages
- EN, ZH, ZH
Company
- Website
- www.ambibma.com
- 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
- $746/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
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
⭐Recent App Store Reviews7 latest · avg 4.43★ · 57.1% 5★ · 0% 1★
5★4 (57%)
4★2 (29%)
3★1 (14%)
2★0 (0%)
1★0 (0%)
+0 ratings/week
Praise: love ×4 best ×3 perfect ×2 great ×1Complaints: hate ×2
Top positive
★★★★★ Great App
I've been enjoying Shubook for years. It does everything I need it to do,and it does it simply. I had a problem with the latest version, but the developer replied right away with a fix, so I can say I'm enjoying it again very much…
★★★★★ Best ereader out there!
I absolutely love Shubook. After Stanza was killed off I tried many apps that left me disappointed. Shubook is hands down the best and gets better with every update. The tagging system from Calibre now automatically sorts in Shubook. If you…
Top negative
★★★☆☆ Very good
This is a very good e-book reader. It’s not perfect, but I like it better than Apple Books and the Kindle app. Unfortunately it seems that this app has been abandoned, with no updates in years, and some annoying issues with layout on a mode…
★★★★☆ Forever User Suggests Improvements
I have used ShuBook almost from its inception, through each subsequent version, and right up to the current 2M version. I love its simplicity, the ability to download ePub & PDF books from any source, add tags, download book covers, sor…
📈Ratings growth10 ratings+900% lifetimeShow 3-year history estimate ▾
Tracked (9 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.
More by Ambibma Ltd.
View all →
Full revenue analysis
Read the article-style breakdown for ShuBook 2M: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.