Comparison

scrolly vs Shelfly

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

Head to head
About

scrolly

Transform your PDF reading with a delightful experience. Customize text size and themes, save your progress with bookmarks, and enjoy a unique vertical scrolling mode. Perfect for books, papers, articles, and textbooks.

Highlights
  • Customizable text size
  • Theme selection
  • Bookmark saving
  • Vertical snap-to-scroll
  • Read books, papers, articles, textbooks
Features
Read full description

replace your scrolling addiction with reading! this app displays PDFs in a beautiful reading experience where you can change the text size, choose a theme, and save bookmarks scroll through your book with a vertical snap-to-scroll use it to read books, scientific papers, articles, and textbooks easily!

About

Shelfly

Features
Currently charting
Read full description

Shelfly is a cozy bookshelf where every book you read finds its place. Track your reading journey in a simple, beautiful way. Line up your books on shelves, follow your progress and watch your reading habit grow with clear stats. Whether you read a few pages a day or chase a yearly goal, Shelfly keeps everything in one calm, distraction-free place. Highlights: - Import your Goodreads or StoryGraph library in one go, with ratings and reviews - Search your library by title, author or your own notes - Book-like spines, or use the cover or a photo of your real book's spine - Four color themes (Classic, Jewel, Cover, Pop) in light and dark - Shelf decorations: a lamp, plants, a cat, candles and more, with new ones unlocked as you read - Add books by scanning a barcode or entering details manually - Update your progress with a smooth page wheel - Built-in Pomodoro timer that asks how many pages you read after each session - Celebrations when you finish a book, reach your goal or keep a streak - Yearly reading goal, reading streak, rating distribution and a reading calendar - Year in Books: celebrate your reading year with shareable cards - Share a picture of your shelf with one tap - Rate finished books and keep personal notes - Arrange books by tapping, or sort a shelf by title, author or color - Back up and restore your library so nothing gets lost - Available in English and Turkish - Fully offline and ad-free; your data stays on your device Shelfly is for readers who want focus, calm and the simple joy of a growing bookshelf.

Screenshots

scrolly4 screens
Shelfly4 screens

Verdict

The call

The clearest difference is price: scrolly at Free against Shelfly's $0.99. scrolly also leads on update cadence (weekly vs every 4 months). Shelfly's advantage is chart position (#65 vs unranked). On ads, in-app purchases, device support and iOS requirement 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

scrolly is free to download; Shelfly costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

scrolly ships an update weekly, Shelfly every 4 months. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 8 level
scrolly versus Shelfly: the parameters behind the verdict, then further details
ParameterscrollyShelfly
PriceFree — better$0.99
Rating4.7 (20 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings20 — better—
Update frequencyWeekly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank—#65 — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size9 MB32 MB
Age rating4+4+
Developertotally important LLCZeynep Beyza INCIK

In-app purchases

None

scrolly

No in-app purchases

None

Shelfly

No in-app purchases

Questions

Is scrolly free?
scrolly is free to download, with no in-app purchases.
Is Shelfly free?
Shelfly costs $0.99, with no in-app purchases.
Do scrolly or Shelfly have ads?
Neither scrolly nor Shelfly shows ads.
Which is updated more often, scrolly or Shelfly?
scrolly ships an update weekly, and Shelfly every 4 months. Most recently, scrolly was updated on October 21, 2026 and Shelfly on October 28, 2026.

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