Comparison

Bookshelf vs Castalogue

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

Head to head
About

Bookshelf

Track your reading, build a library, and improve your habits with insightful stats and AI-powered discovery. Remember what you read with notes and quizzes, and set reading goals to stay motivated. Sync across devices and export your library.

Highlights
  • Build and manage your book library
  • Track reading progress and habits
  • AI-powered book recommendations
  • Take notes and create quizzes
  • Set reading goals and reminders
  • Import from Goodreads and Kindle
  • Sync across iOS devices
Features
Read full description

Bookshelf helps you track your books, build a lasting reading habit, and better remember what you read—now with powerful AI-powered discovery tools to help you find your next great read! Add books you’ve read, books you’re reading, and books you want to read. Improve your reading habits with insightful stats and trend reports. Stay motivated with reading goals, streaks, and reminders. Remember what you read by writing and reviewing notes and quotes. BUILD YOUR LIBRARY • Import & Sync – Import your existing libraries from Goodreads, Kindle, StoryGraph, or Reading List with a tap. • Quick Add – Build your library by searching millions of books, scanning any book's barcode, or adding your own. • Book Recommendations* – Discover trending books, find books based on your mood or any prompt, and browse curated collections to find your next read. • Everything Tracker – Easily manage book collections, reading status, star ratings, reading dates, and more for all your books. • Reading Sessions* – Pick up a book, start a session, and we’ll track everything so you can focus on reading. IMPROVE YOUR READING HABITS • Book Chat – Chat with our AI librarian to generate summaries and flash cards, discuss key ideas, and much more! • Reading Stats – Visualize your reading habits over time with charts and reading stats. • Reading Goals – Create a reading goal for the year to motivate yourself to read more or challenge your friends! • Estimated Completion Time – See how long it will take to finish any book with your average reading speed. • Reading Streaks* – Stay motivated by keeping up your streak! REMEMBER WHAT YOU READ • Smart Notes* – Use cards to jot down notes or vocab, write a summary, or prepare study questions. Scan text directly from books or add rich text of your own. • Knowledge Quizzes* – Spaced-repetition quizzes on your note cards that will significantly increase your retention, guaranteed. • Reading Reminders* – Never forget to read or test your knowledge with timely notifications. OTHER FEATURES • Cloud Sync* & Daily Backups – Sync between your iOS devices so your library is always up-to-date, or restore from previous backups. • App Icons – Make Bookshelf your own with beautiful custom home-screen icons. • Library Export* – Never fear losing your books or notes with CSV library exports. • Dark Mode – Beautiful during the day, gorgeous and eye-saving at night. *Some features require Bookshelf Gold for access or unlimited use Gold Lifetime charges your Apple ID once for permanent Gold status. Gold Yearly charges your Apple ID for 12 months of Gold status after a 7-day free trial unless cancelled at least 24 hours before the trial ends. Gold Monthly charges your Apple ID for 1 month of Gold status on purchase confirmation. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. You can cancel anytime in your iTunes account settings. For more information, see our Terms and Conditions at bit.ly/2NNm93Z and Privacy Policy at bit.ly/31Mad8s.

About

Castalogue

Features
Read full description

Castalogue is a catalog for your library — books, movies, and series — where what matters isn't just the title, but the people and characters behind it. Add items to your own shelves, fill them in with characters and actors, then build relationships between them: who's whose father, mentor, rival, or ally. Castalogue draws these connections as a clear graph, so complex sagas and universes stop being a mystery. KEY FEATURES • Shelves for books, movies, and series — organize your library your way, with a character count on every item. • ISBN barcode scanner — scan a book's cover and Castalogue fetches the title, author, and cover for you. • Automatic metadata lookup — book data from Open Library and Google Books, character descriptions from Wikipedia and Fandom. • Characters and cast — roles, aliases, descriptions, and the actors who play them. • Relationship graph — a visual map of how characters connect within a single item. • Voice and text notes — on items and characters, so nothing slips through the cracks. • Attachments — attach an ebook file or other document directly to a library item. • Community catalog (coming soon) — share a completed cast with other users, or import ready-made ones instead of starting from scratch. • Full Polish localization, Dynamic Type support, and light/dark mode. • A choice of color themes. All data stays on your device — Castalogue doesn't require an account, and the community features (coming soon) are entirely optional. Castalogue is for you if: — you get lost in sprawling fantasy and sci-fi sagas and want a character family tree at hand, — you keep your own library and watchlist in one place, — you like knowing "who's who to whom" before picking up the next volume or season. Terms of Use (EULA): https://www.apple.com/legal/internal/terms/site/itunes/dev/stdeula.html Privacy Policy: https://falkowski.pm/castalogue/en/privacy.html

Screenshots

Bookshelf4 screens
Castalogue4 screens

Verdict

The call

The clearest difference is chart position: Bookshelf at #186 against Castalogue's unranked. On price, 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

Both are free to download. Bookshelf sells 7 in-app purchases, starting at $6.99 per month and Castalogue sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 10 level
Bookshelf versus Castalogue: the parameters behind the verdict, then further details
ParameterBookshelfCastalogue
PriceFreeFree
Rating4.6 (4.1K ratings) — better—
Positive reviews52.0% of reviews—
Number of ratings4.1K — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
Best chart rank#186 — better—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size283 MB4 MB
Age rating4+4+
DeveloperAlexander GerreseKonrad Falkowski

Bugs and requests

Bookshelf

Reported bugs

4 issues
  • Books disappearing from library after updates
  • Reading progress not syncing correctly
  • Inconsistent behavior of reading mode and session tracking
  • Search function frequently returning incorrect results

Requested features

5 requests
  • Add ability to import/export data
  • Implement better sorting and filtering options
  • Allow customizable book covers and collections
  • Add support for audiobook tracking
  • Integrate with other reading apps and services

Castalogue

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Bookshelf

Subscriptions2
  • Bookshelf Gold (Monthly)2 variants$6.991 Month
  • Bookshelf Gold (Yearly)7 Days trial2 variants$29.991 Year
One-time5
  • Tokens Refill (Small)$0.99
  • Tokens Refill (Medium)$4.99
  • 250 Tokens$9.99
Show 2 more
  • Tokens Refill (Large)$9.99
  • Bookshelf Gold (Lifetime)2 variants$79.99
2 purchases

Castalogue

One-time2
  • Small coffee$0.99
  • Large coffee$1.99

Questions

Is Bookshelf free?
Bookshelf is free to download, with in-app purchases available.
Is Castalogue free?
Castalogue is free to download, with in-app purchases available.
Do Bookshelf or Castalogue have ads?
Neither Bookshelf nor Castalogue shows ads.

Other comparisons