Comparison

BooksRUs vs purrpage. Double

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

Head to head
About

BooksRUs

Organize your personal book collection with this app. Easily catalog books by taking photos, recording details like author and genre, and tracking lending status. Quickly find any title with fast search and synchronization across your Apple devices.

Highlights
  • Catalog books with cover photos
  • Track title, author, genre, and condition
  • Manage lending status
  • Search library quickly
  • Synchronize across Apple devices
  • Import/export library data
  • Duplicate book records
Features
Read full description

BooksRUs is your personal library, beautifully organized. Catalog every book you own, remember who borrowed what, and find any title in seconds, all on your iPhone and iPad. SNAP IT, SAVE IT Take a cover photo with your camera and add up to four photos per book. Front cover, back cover, spine, or that signed title page: keep them all. TRACK WHAT MATTERS Record the details that make your collection yours: • Title, author, and genre • Condition and shelf location • Lending status, so you never lose a book to a friend again • Your own star rating and written review • What you paid for it FIND ANYTHING, FAST Search across all your fields at once: title, author, genre, location, and more. Drag along the A–Z index scrubber to leap to any letter in a long list, just like Contacts. BUILT FOR iOS 27 BooksRUs uses a modern Liquid Glass design. On iPad, see your list and book details side by side. On iPhone, it collapses into a clean, simple flow. SIRI AND SHORTCUTS Say the word and add a new book, or open the app, using Siri or the Shortcuts app. Your hands stay free for holding the book. USE iCloud to SYNCHRONIZE WITH ALL DEVICES The app synchronizes all data across all iOS, iPadOS devices that have the same Apple ID User signed into iCloud. IMPORT AND EXPORT YOUR LIBRARY Moving from a spreadsheet? Import your collection from a CSV file. Want a backup, or a copy for Excel or Numbers? Export your entire library (except photos) to CSV any time. Imports are verified with checksums, and each import is tracked as a batch, so you can undo an import cleanly if something looks wrong. For modern backup and restore, use the backup to JSON file format and restore from JSON file format from any disk location your Apple ID has permissions to read/write. DUPLICATE WITH ONE TAP Own several editions or a series with similar details? Duplicate a record and edit only what differs. BUILT-IN HELP A full help section with illustrated topics explains every feature, so you can get started quickly. YOUR LIBRARY, YOUR DATA Your books are stored on your device with Apple's SwiftData. There are no accounts to create and no ads. Whether you have fifty books or five thousand, BooksRUs keeps your shelves in order.

About

purrpage. Double

This app offers a serene reading experience for books, PDFs, and articles. It features customizable typography, a distraction-free interface, and a smart reading companion for explanations and summaries. Listen to your content with natural voices and follow along as sentences are highlighted.

Highlights
  • Customizable typography
  • Distraction-free reading
  • Organized library for books, PDFs, articles
  • AI reading companion for explanations and summaries
  • Text-to-speech with highlighting
  • Note-taking and highlighting
  • Two-page spread on compatible devices
Features
Read full description

Duo Reader is a quiet place to read. Your books, PDFs and articles live in one calm library, set in beautiful type, with a reading companion for when a page needs a second look. READ IN COMFORT - Typography first: choose your typeface, size, spacing and margins, and every line reflows instantly - Clean, distraction-free pages that let the words lead - Pick up exactly where you left off, every time YOUR LIBRARY, QUIETLY ORGANIZED - Books, PDFs and RSS articles in one place - Folders for studying, classics, or whatever you're reading next - Search across your books and jump straight to the passage UNDERSTAND WHAT YOU READ - Select any passage to explain, define, highlight or add a note - Translate a passage and read it alongside the original - Ask Mochi, your reading companion, to summarize a chapter without leaving the page LISTEN WHEN YOUR EYES NEED A REST - Natural voices in several languages, with adjustable speed - Follow along as each sentence is highlighted EVERYTHING YOU SAVE, IN ONE PLACE Bookmarks, notes and highlights, gathered and easy to revisit. EVEN BETTER ON IPHONE DUO Unfold iPhone Duo and your page opens into a true two-page spread. Translations, Mochi and your notes sit beside the page instead of on top of it. Fold it again mid-chapter, or mid-sentence while listening, and you're still on the same line. PRIVATE BY DESIGN Mochi answers quick questions on device, so your reading stays on your iPhone. Mochi features require a device that supports Apple Intelligence. --------------------- Privacy Policy: https://leostudio.global/policies Terms of Use: https://leostudio.global/policies For technical assistance or other inquiries: support@leostudio.global

Screenshots

BooksRUs4 screens
purrpage. Double4 screens

Verdict

The call

The clearest difference is ads: BooksRUs at none against purrpage. Double's shown. BooksRUs also leads on monetization model (free vs ad-supported). purrpage. Double's advantage is update cadence (every 6 days vs every 3 months) and iOS requirement (17.6 vs 27.0). On price, rating, ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for BooksRUs against 5.0 for purrpage. Double. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

BooksRUs ships an update every 3 months, purrpage. Double every 6 days. The most recent releases landed on November 4, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 6 level
BooksRUs versus purrpage. Double: the parameters behind the verdict, then further details
ParameterBooksRUspurrpage. Double
PriceFreeFree
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings23 — better
Update frequencyEvery 3 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPad
Requires iOS27.017.6 — better
Further details — not scored
Size20 MB97 MB
Age rating4+4+
DeveloperJohn GrauelLeoStudio Global

Customer experience

BooksRUs

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

purrpage. Double

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

BooksRUs

No in-app purchases

None

purrpage. Double

No in-app purchases

Questions

Is BooksRUs free?
BooksRUs is free to download, with no in-app purchases.
Is purrpage. Double free?
purrpage. Double is free to download, with no in-app purchases.
Which has better reviews, BooksRUs or purrpage. Double?
BooksRUs and purrpage. Double are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do BooksRUs or purrpage. Double have ads?
purrpage. Double shows ads; BooksRUs does not.
Which is updated more often, BooksRUs or purrpage. Double?
BooksRUs ships an update every 3 months, and purrpage. Double every 6 days. Most recently, BooksRUs was updated on November 4, 2026 and purrpage. Double on November 10, 2026.

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