Comparison

ReadingTreee vs Cat's Library

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

Head to head
About

ReadingTreee

This app helps you cultivate a reading habit by visually tracking your progress and organizing your book collection. It allows you to manage reading statuses, create notes, and watch your personal reading tree grow as you read more.

Highlights
  • Manage reading status (Currently Reading, Want to Read, Finished)
  • Reading tree growth system
  • Book search and barcode registration
  • Create and save reading notes
  • Intuitive and charming UI
  • Reading statistics screen
Features
Read full description

ReadingTree - Build Your Reading Habit, Track Books, and Take Reading Notes ReadingTree helps you build a reading habit and visually manage your reading progress. As you read more books, your personal reading tree grows. You can easily manage reading records, notes, and book lists. Start building your reading habit today with ReadingTree. [Key Features] • Manage reading status: easily organize books into “Currently Reading,” “Want to Read,” and “Finished” • Reading tree growth system: as you read, your tree levels up and grows • Book search and barcode registration: search for books or register them quickly via barcode • Create and save reading notes: jot down memos and memorable quotes while reading • Intuitive and charming UI for a pleasant reading experience • Improved home and library screens for easier reading management • Swipe left or right in the library screen to easily browse your book list • New reading statistics screen to visually track your reading progress [Recommended For] • Those who want to build a reading habit • Those who want to organize their reading notes systematically • Parents who want to foster reading habits with their children • Anyone who wants to make reading more enjoyable and sustainable ReadingTree is the perfect app for anyone looking for a reading app, book tracker, reading notes, book recommendations, reading habits, or self-development tools. Start your reading journey with ReadingTree and build a meaningful collection of books you’ve read.

About

Cat's Library

Enhance your reading with adorable cats! Track your progress, organize your personal library, and collect favorite quotes. This app offers a unique, motivating, and healing reading experience.

Highlights
  • Read with cats and a reading timer
  • Organize books into To Read, Currently Reading, Read
  • Convenient book registration (search, manual, barcode)
  • Collect and save favorite quotes with OCR
  • Track reading progress and history
  • Monthly reading activity calendar
Features
Read full description

For all book lovers and cat lovers out there! With "Cat's Library" reading is no longer a solitary activity. Become a book butler, read books with adorable cats, record your progress, and get encouragement. If you want to turn reading time into a habit or create your own library, become a book butler right now. Reading Experience with Cats Read books with cute cats while using the reading timer. Check your reading time in real-time, and when you finish reading for a certain period, the cat will also appear to rest. Experience both motivation and healing through reading with cats, not 'reading alone.' Cat Bookstore The cat bookstore is equipped with cute props and soothing music. If it's too bright, turn off the lights and turn on the desk lamp. Collected quotes accumulate on the quote board. Discover the growing library feature where your bookshelf fills up the more you read. My Library Organize your library by categorizing books into 'To Read', 'Currently Reading', and 'Read'. Book registration is very convenient with general search, manual addition, and even barcode recognition support. Don't know what to read? The cat will recommend books for you. Reading Records You can leave notes about your feelings or emotions from each reading session. Review collected quotes and reading records by book, reflecting on the traces of each book. Quote Collection When you find a quote you like while reading, collect it right away. Camera OCR function quickly recognizes text, allowing you to save it without typing. Calendar Check your reading activities with the monthly calendar. Library - Add friends and peek at each other's bookshelves — even which book they're reading right now, and for how long. - See which books the book butlers added most this week, and the most-picked all-time favorites. - You decide what to share, item by item: shelf, log, quotes, reviews. Themes & Outfits - Spend the coins you earn by reading on cat outfits and room themes. - Cherry blossom, café, Positano, a cozy study… read in the room that fits your mood today. Recap - Books, pages, hours, quotes — look back at everything you've read, in numbers. - Watch your finished books stack up, by week, month, year, or all time. More features coming soon! Beyond a simple reading tracker app, become a book butler and experience having your own library and an emotional companion with cats. Start The Cat's Library right now! Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ReadingTreee4 screens
Cat's Library4 screens

Verdict

The call

The clearest difference is update cadence: Cat's Library at every 4 days against ReadingTreee's monthly. Cat's Library also leads on review sentiment (87% vs 63%) and rating (4.8 vs 4.6). On price, ratings volume, ads and in-app purchases 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. ReadingTreee sells 2 one-off in-app purchases and Cat's Library sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cat's Library holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 39 and 42 respectively. Written reviews point the same way: 63% of ReadingTreee's written reviews are positive against 87% of Cat's Library's.

UpkeepUpdate frequency

ReadingTreee ships an update monthly, Cat's Library every 4 days. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
ReadingTreee versus Cat's Library: the parameters behind the verdict, then further details
ParameterReadingTreeeCat's Library
PriceFreeFree
Rating4.6 (39 ratings)4.8 (42 ratings) — better
Positive reviews62.5% of reviews86.7% of reviews — better
Number of ratings3942 — better
Update frequencyMonthlyEvery 4 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better16.6
Further details — not scored
Size43 MB222 MB
Age rating4+4+
Developerbyeonghoon seoLo-Fi Labs Inc.

Customer experience

ReadingTreee

All ratings39 ratings
Positive92.3%
Neutral2.6%
Negative5.1%
Written reviews32 reviews
Positive62.5%
Neutral12.5%
Negative25.0%

Cat's Library

All ratings42 ratings
Positive95.2%
Neutral2.4%
Negative2.4%
Written reviews75 reviews
Positive86.7%
Neutral10.7%
Negative2.7%

In-app purchases

2 purchases

ReadingTreee

One-time2
  • 10 leaf$0.29
  • 20 leaf$0.49
7 purchases

Cat's Library

Subscriptions3
  • Pro Book Butler Monthly Sub$4.991 Month
  • Pro Book Butler Annual Subscription$29.991 Year
  • Pro Book Butler Annual Subscription7 Days trial$29.991 Year
One-time4
  • Coin Pack - 100$1.49
  • Coin Pack - 500$6.49
  • Coin Pack - 1000$9.99
Show 1 more
  • Pro Book Butler Lifetime Subs$79.99

Questions

Is ReadingTreee free?
ReadingTreee is free to download, with in-app purchases available.
Is Cat's Library free?
Cat's Library is free to download, with in-app purchases available.
Which has better reviews, ReadingTreee or Cat's Library?
Cat's Library is rated higher. ReadingTreee averages 4.6 out of 5 from 39 ratings, while Cat's Library averages 4.8 from 42 ratings.
Do ReadingTreee or Cat's Library have ads?
Both ReadingTreee and Cat's Library show ads.
Which is updated more often, ReadingTreee or Cat's Library?
ReadingTreee ships an update monthly, and Cat's Library every 4 days. Most recently, ReadingTreee was updated on October 17, 2026 and Cat's Library on October 16, 2026.

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