ChapterChat vs Stacks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChapterChat
Organize your book collection, track reading habits with advanced stats, and connect with a community of readers. Discover new books and join or create book clubs for a shared literary experience.
- Advanced reading statistics
- Reading habit insights
- Book club creation and joining
- Effortless library organization
- Modern and secure interface
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Welcome to SimpleBookshelf, the ultimate app for book lovers! Go beyond the digital bookshelf and dive deep into your reading habits, connect with a community of readers, and organize your literary life like never before. __Key Features:__ - __Advanced Reading Stats:__ Track your progress with detailed statistics. Monitor your reading speed, pages read, books finished, and more. Visualize your reading journey with beautiful charts and graphs. - __Discover Your Habits:__ Uncover your reading patterns with insights into your favorite genres, authors, and even the moods of the books you read. - __Join the Community:__ Connect with fellow book lovers by creating or joining book clubs. Share your thoughts, discover new books, and grow with your reading community. - __Effortless Organization:__ Easily add books to your collection, track your reading status (To Read, Reading, Finished), and manage your library with a clean, intuitive interface. - __Modern & Secure:__ Built with SwiftUI for a seamless experience Privacy Policy: https://shelfspace2.web.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stacks
Digitally catalog your physical book collection by scanning shelves or barcodes. Track reading progress, discover new books based on your taste, and manage your library with visual shelf displays and smart sorting. Offers insights into your reading habits and a wishlist feature.
- Shelf scanning for bulk book cataloging
- Barcode scanning with auto-fill
- Import/export from Goodreads/StoryGraph
- Visual shelf and spine display
- Reading progress tracking
- Book scouting and wishlist building
- Personalized reading recommendations
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Your shelves, in your pocket. Catalog every book you own, then keep track of what you read. Photograph a shelf, scan barcodes, or import your Goodreads or StoryGraph library — your whole collection is with you everywhere, on iPhone and iPad. BUILD YOUR LIBRARY YOUR WAY • Shelf scan: one photo catalogs an entire shelf — 20, 30, 40 books at once • Barcode auto-add: scan, hear the beep, move to the next book — with undo if you catch a wrong one • Import from Goodreads or StoryGraph with a CSV export, and export your library back out any time • Real cover art, page counts, and publication years fill in automatically • Honest AI: spines it can't read are flagged with their position, never guessed TRACK YOUR READING • Mark each book Not started, Reading, Read, or Didn't finish, with start and finish dates • A Currently reading row and a Reading shelf keep what you're in the middle of up front • Set a yearly reading goal and see your pace for the year (Pro) A LIBRARY THAT LOOKS LIKE A LIBRARY • The Shelf view renders your books as actual spines — width from page count, color from the real cover • Sort by author, genre, or color: your shelves as a rainbow • Grid and list views, search, and smart shelves: Unread, Favorites, Lent Out SCOUT SHELVES & BUILD A WISHLIST • Scout mode: point your camera at a bookstore or thrift-shop shelf and see which books fit your taste — before you buy • Librarian's picks (Pro): curated recommendations you can browse by category or search across the whole catalog • Add any book to your Library or your Want list in a tap — from picks, a scout, or a search KNOW YOUR OWN TASTE • Every scan reads your shelf and tells you something true about your taste • "Read next" picks come from books you already own — starting with your unread pile • Insights: pages owned, top genres, most-shelved authors, books added over time DESIGNED FOR IPHONE & IPAD • On iPad: a sidebar, multi-column shelves, and a two-page book view that fills the screen • Portrait or landscape, with Split View and Stage Manager • Your library and Want list stay in sync across devices NEVER LOSE A BOOK AGAIN • Standing in a bookstore wondering if you own it? Search your library in a second • The lending tracker remembers who borrowed what, and since when • Rate, track what you're reading, and keep notes on every book YOUR LIBRARIAN (PRO) • A weekly note on what to start next — from your own unread shelves, with the reasons • Picks chosen for your shelves: real books you don't own yet, tuned to what you've loved • A book-loving AI that knows your entire library: what to read, buy, or gift — grounded in your actual shelves, not bestseller lists • Chat with any single book, in its own voice • Share a Shelfie: your library as a story card — rainbow shelf, reading fingerprint, most-shelved authors Your library is backed up privately and automatically — no account, no sign-up. Free for up to 100 books. Stacks Pro unlocks unlimited books, reading goals, 50 shelf scans a month and the Librarian: $2.99/month or $19.99/year with a 7-day free trial. Stacks is for people whose books are part of who they are. Catalog your shelves and see your library the way it deserves to be seen. — Terms of Use: https://zencodex.io/apps/stacks/terms Privacy Policy: https://zencodex.io/apps/stacks/privacy
Screenshots
Verdict
ChapterChat and Stacks are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ChapterChat sells 2 in-app purchases, starting at $3.99 per month and Stacks sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for ChapterChat against 5.0 for Stacks. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
ChapterChat ships an update weekly, Stacks every 5 days. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.
| Parameter | ChapterChat | Stacks |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Weekly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 19 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Patrick Simmons | Zenmonkeys Digital LLC |
Customer experience
ChapterChat
Stacks
In-app purchases
ChapterChat
- ChapterChat Monthly$3.991 Month
- ChapterChat Yearly$24.991 Year
Stacks
- Pro Monthly$2.991 Month
- Pro Yearly7 Days trial$19.991 Year
- 3 Scans$0.99
- 15 Scans$3.99









