Comparison

Libstack vs Introvert Book Club

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

Head to head
About

Libstack

Organize your personal library, track your reading progress, and jot down notes for each book. Share your reading journey with friends and discover what they're reading.

Highlights
  • Customizable shelves
  • Quick book adding via search or camera
  • Reading progress logging
  • Personal book notes
  • Shareable reading cards
  • Friend activity and book sharing
Features
Read full description

A bookshelf you actually keep. - Shelves you arrange yourself Name your own shelves and drag books into the order you want. See them covers out, or spines lined up. Whatever you're reading sits at the front of its shelf. - Add a book in seconds Search by title, author or ISBN, or point your camera at the barcode on the back. No barcode? Photograph the cover and it finds the book. - Days that add up Read today? Mark it — the calendar fills in and your streak grows. Log where you are by page or by percent. - Notes along the way A sentence worth keeping, or your thoughts when you finish — every book holds your notes, and they're yours alone. - Your reading becomes a card Books finished, days reading, your pace, your most-read author — one library card. Share it to Stories, Photos, or anywhere else. - Read alongside friends Invite a friend by link and see what they have open right now. Browse their shelves, leave a compliment on a book they've read, and poke the ones who've gone quiet. Friendships are mutual, and only friends can see your library. - Pick up where you left off Jump straight to the book in the app you read it in, or borrow it free from your local library through Libby. Korean and English throughout. Light and dark. iPhone and iPad.

About

Introvert Book Club

This app supports solitary reading while fostering a sense of community. It helps users build a consistent reading habit through timed sessions and allows them to save and revisit impactful quotes.

Highlights
  • Reading timer with automatic time recording
  • Quote journal to save and share resonant sentences
  • Calendar and book organization for reading history
  • Habit building through timed reading sessions
  • Weekly reading hour suggestion
Features
Read full description

"Introvert Book Club, Read-Together-But-Separately App" This app is for people like me— who don’t feel like reading, but still want to read, who want to be alone, but also want to feel together. It’s made for those contradictions we all carry. [ Key Features ] 1. Reading Timer - Simply start the timer and read. Your reading time is automatically recorded and organized by calendar and by book. Turn small daily reading moments into a lasting habit. 2. Quote Journal - Save and share sentences that resonate with you. Your saved quotes are collected by date and by book, so you can revisit them anytime. [ How We Read Together ] 1. Read for 10 minutes a day using the timer 2. Write one meaningful sentence each time you read 3. Spend one hour a week reading in a nice, comfortable space

Screenshots

Libstack4 screens
Introvert Book Club4 screens

Verdict

The call

Libstack and Introvert Book Club are too close to call on the numbers: across 7 compared parameters — price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Libstack ships an update every 10 days, Introvert Book Club every 5 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

ScorecardNo meaningful differences
Libstack versus Introvert Book Club: the parameters behind the verdict, then further details
ParameterLibstackIntrovert Book Club
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size42 MB65 MB
Age rating4+4+
DeveloperSounho ChungCommon

Customer experience

Libstack

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Introvert Book Club

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Libstack

No in-app purchases

None

Introvert Book Club

No in-app purchases

Questions

Is Libstack free?
Libstack is free to download, with no in-app purchases.
Is Introvert Book Club free?
Introvert Book Club is free to download, with no in-app purchases.
Do Libstack or Introvert Book Club have ads?
Neither Libstack nor Introvert Book Club shows ads.
Which is updated more often, Libstack or Introvert Book Club?
Libstack ships an update every 10 days, and Introvert Book Club every 5 days. Most recently, Libstack was updated on October 21, 2026 and Introvert Book Club on October 10, 2026.

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