Comparison

Open Library Reader vs Folio

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

Head to head
About

Open Library Reader

Access and read millions of books from an online library. Organize your reading lists, track borrowed books, and discover related titles within a familiar reading interface. Requires an internet connection.

Highlights
  • Browse and check out millions of books
  • Track reading progress and wishlists
  • Built-in search and related title discovery
  • Shelf management and edition changes
  • Checkout tracking for borrowed books
  • Customizable reading interface
Features
Read full description

Open Library is an online library with millions of books to browse or check out. You can track the books that you're reading, want to read, etc. and read many of them right there. PLEASE NOTE: This app is an interface to the openlibrary.org web site — if you don't use that site to read books, you may have trouble figuring out what the app is for. I encourage you to familiarize yourself with the site first, and then you'll understand what the app offers. This app is one reader's effort to create the ideal portable experience for taking advantage of Open Library's amazing collection. You'll get the best experience out of this app on an iPad, but you can use it on a smaller screen (if you don't mind squinting). The moment you open the app and log in, any books you've already saved on the Open Library site are laid out on your screen. You can sort them by title, author, publication date, and date saved, see which books are available to read, and open them with a single tap. Once you've opened a book in the familiar reading interface, a tap at the top of the screen will trigger the full screen mode, removing every distraction and expanding the book pages to the limits of your screen for the perfect reading experience. Other features include: - Built-in search: find and add books to your shelves from inside the app. - Shelf management: move books between shelves, remove books, change the edition of a book. - Related title search: choose a book on your shelf and quickly find more books like it. - Checkout tracking: see at a glance how long you have left on limited-access books you've checked out. - Customization: choose which shelves you want to see and manage the size of the books and their titles. This app is essentially an alternative interface to the Open Library site — all of your data is stored there, and the books you read are hosted online, not in the app. As a result, an active internet connection is required when you are using this app. Open Library is an initiative of the Internet Archive, a 501(c)(3) non-profit, building a digital library of Internet sites and other cultural artifacts in digital form. The developer of this app has no legal or contractual relationship with Open Library or the Internet Archive, and bears no responsibility for the content found there.

About

Folio

Features
Read full description

Remember the reading life behind every finished—or unfinished—book. Folio is a private reading log for iPhone that keeps your library, timed sessions, page progress, notes, goals, and statistics together without adding a social feed. YOUR PERSONAL LIBRARY • Find books through search or add them manually • Organize reading, finished, want-to-read, and did-not-finish shelves • Keep the title, author, cover, page count, dates, rating, and review together • Start with up to 10 books for free TRACK EVERY READING SESSION Start a timer when you sit down with a book, then save how long you read and where you stopped. Page and percentage progress make long books and partial sessions visible—not only the finish. KEEP THE THOUGHTS THAT MATTER Save private notes, quotations, and page references beside the book that inspired them. Write one sentence or many; Folio does not turn your journal into a public performance. SEE YOUR READING PATTERNS Review reading time, pages, streaks, monthly activity, and annual-goal progress. Use the record to understand the habit rather than race through a leaderboard. MORE WAYS TO READ Use ambient sounds during a session, keep a current book on your Home Screen widget, create optional share cards, and export your library as CSV. PRIVACY-MINDED No account is required. Journal data stays on your device and can be exported as CSV with Folio Pro. There are no followers and no social feed. FOLIO PRO Folio is free to download and supports a library of up to 10 books before upgrading. Optional annual and lifetime purchases unlock unlimited books and the complete experience. Prices vary by storefront. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Open Library Reader1 screens
Folio4 screens

Verdict

The call

The clearest difference is in-app purchases: Open Library Reader at none against Folio's 2. Open Library Reader also leads on update cadence (every 2 months vs every 4 months) and iOS requirement (13.0 vs 17.0). On price, ads 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. Folio sells 2 in-app purchases, starting at $9.99 per year. Open Library Reader asks for nothing beyond the download.

UpkeepUpdate frequency

Open Library Reader ships an update every 2 months, Folio every 4 months. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Open Library Reader versus Folio: the parameters behind the verdict, then further details
ParameterOpen Library ReaderFolio
PriceFreeFree
Rating3.1 (51 ratings) — better—
Positive reviews26.2% of reviews—
Number of ratings51 — better—
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size24 MB31 MB
Age rating4+4+
DeveloperLoomis House, LLC远锋 叶

Bugs and requests

Open Library Reader

Reported bugs

41 issues
  • Download/signin glitch
  • App logs out while borrowing
  • Cannot download a book (login required error)
  • Login issue blocking app usage
  • App says logged in but requires login
Show 36 more
  • Impossible to scroll through pages
  • Bar at the bottom has tiny hitbox
  • Doesn't scroll when holding bar
  • Resets progress through book
  • Logged out for no apparent reason
  • Cannot log in
  • Shows login button even when logged in
  • Cannot see web bookmarks in app
  • Cannot get rid of instruction bubble
  • Lost whole history/list
  • Cannot sign up
  • Cannot sign in
  • Times out very quickly
  • Cannot get past login screen (error message)
  • Does not let me login
  • Cannot get past login part (loading then back to sign up)
  • Cannot log in with Google account
  • Logged out and cannot log back in
  • Does not show lists created on account
  • No zoom option
  • Cannot sign in with Google credentials (wrong password error)
  • Crashes when opened
  • Won't let me sign in through Google
  • View of page is cut in half when magnified
  • Zooming in to read is impossible
  • Scrolling jumps from random page to random page
  • Blank screen appears when selecting a book
  • Pages don't stay centered when zoomed
  • Full screen mode doesn't automatically adjust
  • Logs me out all the time
  • Doesn't sync with data on laptop
  • Zooming in or out is a nightmare
  • Won't load book pages
  • Audio is very bad, not maintaining proper gap
  • Audio and sentence indication not in sync
  • Jumps back pages continuously when scrolled

Requested features

8 requests
  • Easier to see book availability before clicking
  • Improve search functionality (AI/cosine similarity)
  • Add Google Auth for login
  • Offline mode
  • Easier interface for finding new books
Show 3 more
  • Tag unavailable books in search results
  • Fix single-page scrolling to be more like flipping pages
  • Improve full-screen mode auto-adjustment

Folio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Open Library Reader

No in-app purchases

2 purchases

Folio

Subscriptions1
  • Folio Pro - Yearly$9.991 Year
One-time1
  • Folio Pro - Lifetime$24.99

Questions

Is Open Library Reader free?
Open Library Reader is free to download, with no in-app purchases.
Is Folio free?
Folio is free to download, with in-app purchases available.
Do Open Library Reader or Folio have ads?
Neither Open Library Reader nor Folio shows ads.
Which is updated more often, Open Library Reader or Folio?
Open Library Reader ships an update every 2 months, and Folio every 4 months. Most recently, Open Library Reader was updated on November 7, 2026 and Folio on October 31, 2026.

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