Comparison

Lios Calibre Viewer vs BookLib Library Manager

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lios Calibre Viewer

Access and read your entire book collection from your computer on your iPad or iPhone. Organize books by category and download them for offline reading, saving device space. Browse your library quickly with locally stored book names and cover art.

Highlights
  • Stream Calibre library
  • Download books for offline reading
  • Organize books by category
  • Quick library browsing
  • Save device space
Features
Read full description

View your entire calibre library streamed from your host computer to your iPad or iPhone. Download the books to the device and read the books anywhere. Organize your books by category or by the books you choose to download. Your entire library of book names and cover art are stored locally for quick browsing. The books are only downloaded on device when you choose to download them, saving space on your phone or tablet.

About

BookLib Library Manager

Features
Read full description

BookLib is the companion app for your self-hosted BookLib library server. Catalog your books, organize your shelves, and keep track of loans from your iPhone, iPad, or Apple Watch—while keeping your library under your control. Build your personal library Scan a book’s barcode to quickly add it using its ISBN, or search by title and author to choose the correct edition. BookLib can retrieve available metadata such as covers, descriptions, genres, formats, and series information from supported book catalogues. Know exactly where every book belongs Create digital bookshelves that match your physical collection. Assign books to individual shelf positions, browse a visual representation of each shelf, and use the locator to find a book quickly. Search and organize Find books by title, author, ISBN, notes, or catalogue identifier. Filter your collection by tags, format, series, copies, and editions. Authors and series are interactive, making it easy to explore related books in your library. Manage lending Check books out under a borrower’s name and see which titles are currently away. Record returns when books come back, and distinguish between multiple physical copies or different editions of the same title. Apple Watch companion Browse your library from your wrist, view shelf locations, and quickly check where a book belongs. The Watch app communicates with BookLib through your paired iPhone. Your server, your data BookLib connects directly to a compatible server that you or your server administrator operates. The app has no centralized BookLib account, advertising, analytics, or tracking. A compatible self-hosted BookLib server is required. Installation and server documentation are available at: https://github.com/CloudyMcFox/BookLib

Screenshots

Lios Calibre Viewer4 screens
BookLib Library Manager4 screens

Verdict

The call

The clearest difference is price: BookLib Library Manager at Free against Lios Calibre Viewer's $2.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

BookLib Library Manager is free to download; Lios Calibre Viewer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Lios Calibre Viewer ships an update every 5 days, BookLib Library Manager every 8 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

Scorecard1 real difference · 9 level
Lios Calibre Viewer versus BookLib Library Manager: the parameters behind the verdict, then further details
ParameterLios Calibre ViewerBookLib Library Manager
Price$2.99Free — better
Rating4.3 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 days — betterEvery 8 days
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.016.0
Further details — not scored
Size11 MB5 MB
Age rating4+4+
DeveloperAntonio TorresRyan Offir

In-app purchases

None

Lios Calibre Viewer

No in-app purchases

None

BookLib Library Manager

No in-app purchases

Questions

Is Lios Calibre Viewer free?
Lios Calibre Viewer costs $2.99, with no in-app purchases.
Is BookLib Library Manager free?
BookLib Library Manager is free to download, with no in-app purchases.
Do Lios Calibre Viewer or BookLib Library Manager have ads?
Neither Lios Calibre Viewer nor BookLib Library Manager shows ads.
Which is updated more often, Lios Calibre Viewer or BookLib Library Manager?
Lios Calibre Viewer ships an update every 5 days, and BookLib Library Manager every 8 days. Most recently, Lios Calibre Viewer was updated on November 9, 2026 and BookLib Library Manager on November 6, 2026.

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