Comparison

PDF Reader Shelf vs MargiNotes

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

Head to head
About

PDF Reader Shelf

Features
Read full description

PDF Book Reader is a clean and powerful reading app for organizing and reading PDF books, study notes and documents on iPhone and iPad. Import your PDFs, browse your library with automatically generated covers, and continue reading from the page you left off. Search, favorites, shelves, reading progress and sorting tools help keep every document organized. In the reader, you can switch between single page, continuous scrolling and two-page layouts, with horizontal or vertical reading options. Choose normal, sepia, gray or night mode and adjust the reading experience to your eyes. Highlight text, add notes, save bookmarks and search inside your documents. PDF Book Reader makes long PDFs easier to read, revisit and manage. Key features: Import and share PDF files Automatic cover generation Continue from your last page Shelves, favorites, filters and sorting In-document search Bookmarks Color highlights and notes Normal, sepia, gray and night themes Single page, continuous and two-page views iPhone and iPad support

About

MargiNotes

Features
Read full description

MargiNotes is a calm reader and note-taking app for PDF, EPUB, and paper books. Its difference is simple: a note can keep a path back to the book it came from. Import a highlight from Kindle or Apple Books, or capture a quote from a printed page. If the matching PDF or EPUB is in your library, MargiNotes can search that book on your device and relink the note to its real place. No guessed links. If MargiNotes cannot find a reliable match, it says so clearly. READ AND CAPTURE • Read PDF and EPUB books with adjustable themes, typography, layout, and reading settings. • Highlight while you read and keep each note with its book. • Capture quotes from printed books with on-device OCR. • Scan a barcode to fill in a paper book's title, author, and cover. • Add comments, tags, and voice notes alongside what you read. FIND YOUR WAY BACK Search inside a book and your own notes appear first, next to the book's own sentences. Search quotes, comments, tags, and transcripts across your whole library, or find a note straight from iPhone search. Ask your notes a question and the answer is built only from them — and always shown with the notes it came from. Writing the answer needs Apple Intelligence; without it, MargiNotes still finds the notes closest to your question. YOUR NOTES, PORTABLE Create shareable quote cards, follow your reading with simple statistics and widgets, and export to Markdown, PDF, or an Obsidian vault where every note keeps its links. PRIVATE BY DESIGN • No account • No ads • No analytics • No cloud AI — text recognition, transcription, and answers run on your device • Sync only through your own iCloud The app never goes online by itself. The one exception is the barcode lookup you start yourself, which sends only the ISBN — and you can switch it off. Your books stay yours. MargiNotes is built to help you remember not only what you saved, but where it came from.

Screenshots

PDF Reader Shelf4 screens
MargiNotes4 screens

Verdict

The call

The clearest difference is ads: MargiNotes at none against PDF Reader Shelf's shown. PDF Reader Shelf's advantage is update cadence (daily vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

PDF Reader Shelf ships an update daily, MargiNotes every 2 weeks. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

Scorecard2 real differences Ā· 4 level
PDF Reader Shelf versus MargiNotes: the parameters behind the verdict, then further details
ParameterPDF Reader ShelfMargiNotes
PriceFreeFree
Update frequencyDaily — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size5 MB14 MB
Age rating4+4+
DeveloperSalih ONUSEmirhan Ayaz

In-app purchases

None

PDF Reader Shelf

No in-app purchases

None

MargiNotes

No in-app purchases

Questions

Is PDF Reader Shelf free?
PDF Reader Shelf is free to download, with no in-app purchases.
Is MargiNotes free?
MargiNotes is free to download, with no in-app purchases.
Do PDF Reader Shelf or MargiNotes have ads?
PDF Reader Shelf shows ads; MargiNotes does not.
Which is updated more often, PDF Reader Shelf or MargiNotes?
PDF Reader Shelf ships an update daily, and MargiNotes every 2 weeks. Most recently, PDF Reader Shelf was updated on October 9, 2026 and MargiNotes on October 10, 2026.

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